title stringlengths 0 901 | abstract stringlengths 3 9.89k | PMID int64 22 25.3M | embedding listlengths 768 768 |
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Was the pre-biotic atmosphere of the earth heavily reducing? | A calculation of the net oxygen released by photosynthesis, and of the possible sinks for such oxygen, shows clearly that the pre-biotic atmosphere of the earth must have been heavily reducing. | 503,453 | [
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Metalloporphyrins and molecular complexes of amino acids with porphyrins in juvenile volcanic ash. | In samples of juvenile ash of the volcano Tjatja, USSR (that erupted in 1973) metalloporphyrins were found. With respect to the fluorescence spectra free bases of the compounds were close to the pigments that formed in abiogenic synthesis experiments (predominance of long-wave length fluorescence band). The pigments de... | 503,454 | [
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Antiquity and evolutionary status of bacterial sulfate reduction: sulfur isotope evidence. | The presently available sedimentary sulfur isotope record for the Precambrian seems to allow the following conclusions: (1) In the Early Archaean, sedimentary delta 34S patterns attributable to bacteriogenic sulfate reduction are generally absent. In particular, the delta 34S spread observed in the Isua banded iron for... | 503,456 | [
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Ectopic striated muscle in the fallopian canal: a histopathologic report. | Two temporal bones are discussed that contain ectopic striated muscle in the horizontal fallopian canal. In one instance, this muscle was clearly innervated by a branch from the geniculate ganglion. This is an unusual histologic finding and the innervation to such a muscle has been rarely identified. The facial nerve s... | 503,477 | [
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Dacryocystorhinostomy utilizing an anterior lacrimal sac flap to periosteum technique. | Dacryocystorhinostomy is used in the effective treatment of epiphora secondary to obstruction of the lacrimal drainage system. Common causes of obstruction include canalicular disruption, lacrimal sac fibrosis, and external and internal nasal trauma. Most techniques of dacryocystorhinostomy attempt to suture the lacrim... | 503,485 | [
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Transposition of infrahyoid muscles to replace intrinsic laryngeal muscles: technique and long-time observations on return of function. | Insertion of the separate motor branches of the caudal laryngeal nerve of the dog separately and atraumatically into a denervated infrahyoid muscle resulted in reinnervation of that muscle, as indicated by the appearance of electromyographic potentials two months postoperatively. When the nerve branches were used to re... | 503,505 | [
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Radiation-induced carcinoma in a hemangioma. | A case of squamous cell carcinoma arising in repeatedly irradiated buccal hemangioma is reported, and the surgical techniques used in reconstructing the cheek and lips are described. | 503,521 | [
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Ganglioneuroma of the C4, C5 interspace. | Neurogenic tumors in the neck region are relatively infrequent with the exception of those involving the cranial nerves. A case of a ganglioneuroma or neurofibroma involving the nerve root of C4, C5 interspace is reported. The tumor appeared as a mass within the neck with a slight amount of pain in the shoulder and upp... | 503,522 | [
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[Experiences with miconazole in the prevention and therapy of candidiasis]. | 1. The treatment of 26 children suffering from haemoblastoses and tumors by the antimycotic Miconazol is reported on. 2. The application took place prophylactically as well as therapeutically by an oral or intravenous administration. Mycological examinations (stools, urine, throat swab, blood) have been carried through... | 503,539 | [
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Tooth pulp-driven neurons in somatosensory cortex of primates: role in pain mechanisms including a review of the literature. | The tooth pulp of primates was stimulated electrically while searching for evoked unit potentials in the cerebral cortex. Control procedures were employed to assure that the electrical stimuli reached only tooth pulp fibers but no extrapulpal sensory fibers. In addition, an electrode was inserted in soft tissue surroun... | 503,553 | [
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Chronically reserpinized rat as a model for cystic fibrosis: Na+ transport inhibitory effect in submaxillary saliva. | The retrograde perfusion assay in the rat parotid gland was used to investigate the effects of salivary secretions from control and reserpine-treated rats on Na+ reabsorption. Results demonstrated that submaxillary saliva from the treated animals caused a 69% inhibition of Na+ reabsorption, accompanied by a 28% reducti... | 503,644 | [
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Lung fluid balance in awake newborn lambs with pulmonary edema from rapid intravenous infusion of isotonic saline. | To study pulmonary transvascular filtration of fluid and the normal adaptive response of newborn animals to excessive water in the lungs, we measured lung lymph flow, pulmonary vascular pressures, and the concentration of protein in lymph and plasma of nine unanesthetized 1- to 3-wk-old lambs, before, during, and after... | 503,655 | [
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Effect of hydrocortisone on the metabolism of phosphatidylcholine in maternal and fetal rabbit lungs and livers. | Administration of hydrocortisone to pregnant rabbits caused a decrease in weights of fetal body and lung and an increase in the incorporation of choline into fetal lung PC. The authors found no induction of the enzymes related to the incorporation of choline into PC in fetal lung. Also, there was no stimulation of any ... | 503,666 | [
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Monocyte subsets in neonates and children. | Volumetrically distinct subpopulations of peripheral blood monocytes, termed M1, M2, and M3, were identified in healthy normal adults and children. Because normal neonates have abnormal monocyte chemotaxis, it was determined whether monocyte subpopulations have different chemotactic capabilities and, if so, whether che... | 503,696 | [
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Acquisition and generalization of instruction following behavior in profoundly retarded individuals. | Four profoundly retarded male residents of a state institution learned to comply with the instructions "come here," "stay," and "sit." Acquisition occurred in a special therapy room and instructions were presented in a fixed sequence. All subjects learned to comply with the instructions in the training environment. Tes... | 503,731 | [
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Visual-field asymmetries in letter recognition: evidence for asymmetry in early visual registration. | Two experiments on visual-field differences in tachistoscopic letter recognition are described. In the first, a bright pre-exposure field with a black fixation point was used, and the conventionally expected dominance of the right visual field was found. However, a large number of "blank" trials were observed, in which... | 503,735 | [
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Reliability of electromyographic measurements after surface electrode removal and replacement. | The purpose of this study was to determine the reliability of electromyographic measurements after surface electrode removal and replacement. Eight male subjects performed an isometric exercise with the left triceps brachii at loads equivalent to 50, 40, and 30% of their maximum voluntary contractile strength (MVC). Su... | 503,739 | [
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Time estimation and hyperactivity, replication. | Three groups of boys included 135 of normal IQ, showing normal activity; 6 were hyperactive and of normal IQ, and 6 showed normal activity but low IQ. Their ability to estimate a 30-sec. interval showed only the 6 normally active boys of low IQ had significantly different elapsed and estimated times. Time estimation is... | 503,747 | [
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Labeling, attention and perception, a developmental study. | 96 7- and 9-yr.-olds were under four experimental conditions. A "distinctive label" group (n = 24) associated four different gender-cued labels with four infants' faces. An "equivalent label" group (m = 24) associated only two of these labels. There were also two no-label groups (ns = 24), "differential perception" and... | 503,759 | [
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Relation of personality characteristics and color preferences. | 150 students responded to the Edwards Personal Preference Schedule and ranked color plates from the Luscher Color Test. Regression analysis yielded no relationship of predictive significance between the two sets of variables. An ancillary analysis using sets of random numbers in place of the color preference data yield... | 503,760 | [
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Assessment of depth perception in cats. | A behavioural method is described for the assessment of depth perception of kittens. Measurement is made of the smallest separation in depth that can be discriminated between two adjacent stimuli under both monocular and binocular viewing conditions. Normal animals can discriminate much smaller separations in depth whe... | 503,769 | [
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Angle-matching illusions and perceived line orientation. | Spatial illusions which occur in angle-matching tasks were examined in six experiments using two different kinds of display. In experiments 1 and 2 illusory errors generally were in the direction predicted by Lennie's hypothesis which states that angle arms are attracted perceptually towards the oblique axes of space, ... | 503,786 | [
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Orthoses to fit shoes. | Orthoses which fit inside shoes have, in many cases in the past, been fashioned to the shape of the patient's foot. It is suggested that improved stability and comfort is achieved if, instead, the outside shape of the foot-piece of the orthosis is fashioned to the inside shape of the footwear. A method for achieving th... | 503,800 | [
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[Essential hypertension in the child and adolescent. A preliminary study at an interval of more than one year (author's transl)]. | One to two years after an initial study establishing normal values for blood pressure in a population of 819 children and adolescents, the outcome in 74 individuals, 39 of whom were considered to be hypertensive and the influence of the observer and methods on the collection of cases of hypertension are evaluated. 58% ... | 503,809 | [
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The polarity of the cauliflower mosaic virus genome. | We have demonstrated that the 5' termini of the DNAs of cauliflower mosaic virus (CaMV) isolates CM4-184 and Cabb B-JI have free hydroxyl groups accessible for phosphorylation using polynucleotide kinase. This has enabled us, using the Cabb B-JI isolate, to label and identify the 5' nucleotides. Digestion of 5' termina... | 503,842 | [
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Separation of oligo-RNA by reverse-phase HPLC. | A rapid and highly reproducible chromatographic technique has been developed for analysis and purification of complex mixtures of oligoribonucleotides. The method utilizes a column of microparticulate porous silica beads fully derivatized with octadecylsilyl groups. The column is eluted with gradients in acetonitrile/w... | 503,849 | [
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A radiocolloid study of the reticulo-endothelial system in tropical diseases. | Radiocolloids were used to study the trapping function of the reticulo-endothelial system in 361 children with infectious or non-infectious tropical diseases. Responses of the system varied not only between different types of diseases but also between individuals suffering from the same type of disease, as illustrated ... | 503,869 | [
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Synthesis and biological activity of pyrazo-[3,4-b]-pyridine derivatives. Part I. | 3 (3'-Morpholino-2'-hydroxypropoxy)--7--9 as well as 3 (3'-morpholino-2'-hydroxypropyloamino) 14 -- 16 derivatives of 1-methyl and 1-phenyl pyrazo-[3,4-b]-pyridines were prepared and screened for expected circulatory activity. Compounds 7, 11--14, 20 mg/kg, produced hypotension in cats; Compounds 7 and 14, 50--80 mg/kg... | 503,970 | [
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[Biomedical materials and products]. | The authors present propositions of definitions and repartition of biomedical materials and products. After a historical review particular groups of biomedical materials were discussed, with special regard to implants. | 504,024 | [
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... |
Radiation sterilization of cellulose dressing materials. | The results of investigations in the field of application of 60 Co gamma-irradiation for sterilization of cellulose dressing materials have been presented on the ground of our own experiments. The investigations were carried out for the model objects which are contents of all dressing materials, nowadays used in medica... | 504,025 | [
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[Implantation of prostheses in the treatment of deformations following mastectomy]. | The selection of proper incision is an important problem when removing immense tumors of mammas with immediate or delayed implantation of silicone prosthesis. Transversal incision facilitates - from the technological point of view - the removal of mammary gland. The same goal may be obtained applying incision in submam... | 504,026 | [
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0.094... |
Effects of 6-hydroxydopamine and 6-hydroxydopa on development of behavior. | Rats treated at birth with 6-hydroxydopamine (6-OHDA) (60 microgram/g, IP) or 6-hydroxydopa (6-OHDOPA X2) (60 microgram/g, IP at birth and 48 hr later) exhibited increases in general activity throughout the initial 5 weeks after birth, with peak activity occurring around 20 days postnatally. Activity changes in the 6-O... | 504,311 | [
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[The dynamics of drug release from suppositories. Part 2: Phenylpyrazolone derivatives in animal experimentation (author's transl)]. | The authors studied the in vivo absorption of aminophenazone and aminoantipyrine from suppositories produced by means of, respectively, hydrophilic vehicles (PEG 1000, PEG 1500, PEG 2800, PEG 4000, PEG 5000) and lipophil vehicles (Witepsol H 15 and cocoa butter). It was found that the above-mentioned drugs were absorbe... | 504,331 | [
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-... |
Conditioned-reflex learning of normal juvenile and adult rats exposed to action of substance P and of an SP analogue. | The actions of both Substance P, a potential neurotransmitter or modulator and of a shortened analogue on learning and memorizing processes are reported in this paper. Sixty male rats, aged 22, 14, and 10 weeks, were exposed to Substance P (Arg-Pro-Gln-Gln-Phe-Gly-Leu-MetNH2) and to a shortened hexapeptide analogue (Ly... | 504,332 | [
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Dose dependence of PGBX, a polymeric derivative of prostaglandin B1, for normalization of hereditary diabetes of the mouse. | A polymeric derivative of prostaglandin B1, PGBX, which reactivates phosphorylation in damaged mitochondria, is shown to normalize the high blood glucose, obesity, and excessive appetite of the hereditary diabetic mouse. The degree of normalization is shown to vary with dosage. | 504,362 | [
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Membrane potential and active transport--an information theory approach. | A membrane potential stabilizing mechanism is proposed. Permeability is portrayed as controlled by a potential sensor. The active transport system is suggested to be a Maxwell demon able to recognize different ions, and modulate their passage into and out of the cell, without apparent reliance on energy. The idea that ... | 504,365 | [
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Lymphocyte culture supernatants prevent sickling of red blood cells. | Metabisulphate-treated red blood cells from sickle-cell patients were protected from sickling by exposure to supernatants from cultures of phytohemagglutinin-stimulated normal human lymphocytes. Such supernatants, when not thus stimulated, afforded no protection. | 504,366 | [
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An interpersonal communication analysis of relationship in psychotherapy. | In psychotherapy theorty, research, and practice, relationship has remained a controversial and elusive construct. Psychoanalytic theorists highlight transference-countertransference factors as central theoretical and technical components, but have yet to translate these constructs into a scientifically useful format. ... | 504,511 | [
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Hypertension and hyperkalaemia responding to bendrofluazide. | A 33-year-old man is described with hyperkalaemia, hypertension and acidosis. The blood pressure was 160 to 200 mmHg systolic and 90 to 110 mmHg diastolic and the plasma potassium was between 6.0 and 7.0 mmole per litre. There was no renal disease and creatinine clearance was 103 ml per minute. Plasma renin activity wa... | 504,550 | [
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Psychodynamic components in the role of the radiologic technologist. | The role of the radiologic technologist involves frequent psychosocial transactions and interpersonal relationships. The technologist is called upon to utilize knowledge and skills in the area of human relations in relating to patients, functioning on the allied-health team, and carrying out administrative tasks. This ... | 504,623 | [
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[Angiographic findings in cerebral aneurysms (author's transl)]. | The angiograms of 140 patients with congenital intracerebral aneurysms were examined, and specific angiographic findings correlated to course and prognosis of the patient. Vascular spasm at or near the aneurysm seen shortly after its rupture seems to be a protective measure against further hemorrhage. Persistance of sp... | 504,632 | [
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Ultrasonic evaluation of the stomach, small bowel, and colon. | A characteristic sonographic pattern that suggests a bowel lesion is pathologically significant in over 90% of patients with this pattern. The authors call this pattern the "pseudokidney sign" because it superficially resembles the ultrasonic appearance of the kidney. Although found occasionally in normal persons, this... | 504,647 | [
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Ultrasound evaluation of common bile duct size. | A new sonographic technique for demonstration of the common bile duct is described in a prospective study of 200 patients. The mean diameter of the normal common duct was 4.1 mm. A common duct greater than 7 mm in diameter can be seen in (a) nonjaundiced patients with gallstones and/or pancreatitis, or (b) jaundiced pa... | 504,652 | [
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... |
Applications and limitations of measurement of 15-keto,13,14-dihydro prostaglandin E2 in human blood by radioimmunoassay. | It has been anticipated that the inherent limitations of radioimmunoassays for prostaglandin E (PGE) would be obviated by assays for its major circulating metabolite, 15-keto, 13,14-dihydro PGE2) which has a longer half-life in blood. We examined the effects of PGE2 infusion and alterations in lipolysis in vivo, and of... | 504,691 | [
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[Evaluation of the reproducibility in radioactivity measurements with liquid scintillation counters--effect of anomalous count rate-dependent photomultiplier gain variations (author's transl)]. | Time variations in count rate were measured for prolonged period of time using a set of 3H samples and a few other specially prepared samples of 14C, 32P, and 137Cs. Besides, beta-ray spectra of a particular 3H sample were measured as a function of time with a multichannel pulse height analyzer. These measurements lead... | 504,723 | [
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... |
[The age as a factor on the nutritive utilization of protein by rainbow trout (author's transl)]. | Nutritive utilization of protein was studied in three age weight rainbow trout (Salmo gairdnerii) groups fed on a 37.5% casein-protein diet. As to digestive efficiency age was found to have no influence on the apparent and true digestibility coefficient for protein. On the other hand Biological Value, Net Protein Utili... | 504,766 | [
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Effect of ethanol on glucose and tyrosine transport in the rat small intestine. | The effect of ethanol on the intestinal absorption of glucose and tyrosine in the rat small intestine has been studied. Ethanol inhibits the active transport of these substrates both in incubation and preincubation experiments. Ethanol, besides, increases diffusion of arabinose, which may indicate an unspecific alterat... | 504,773 | [
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Acute effects of acetaldehyde and ethanol on rat heart mitochondria. | The effects of acute exposure of rat heart mitochondria to ethanol (87, 65, and 45 mM) and acetaldehyde (3, 1, and 0.3 mM) were studied using both glutamate and pyruvate/malate substrates. Mitochondria assayed with pyruvate/malate substrate showed no apparent effects of acute exposure to or 30 min preincubation with et... | 504,785 | [
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0.0637923... |
Alterations in arginine-induced pancreatic hormone release: influence of acute and chronic exposure to ethanol. | Acute oral administration of ethanol (150 and 750 mg/100g) to fasted rats produced dose-related inhibition of arginine-induced insulin (IRI) release, an elevation of plasma glucagon (IRG) levels and minor effects on blood glucose. In contrast, chronic consumption of ethanol for 10 weeks augmented arginine-induced hyper... | 504,786 | [
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... |
Single point clearance estimation. | Linear relationships were observed between the log of total body clearance (C1B) and simulated serum concentrations (Cmin) six hours after a test dose of chloramphenicol, as well as between C1B and the reciprocal of Cmin. Correlation coefficients for these relationships were 0.988 and 0.977, respectively. Clearance est... | 504,791 | [
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Cholesteryl iodide-125I as a diagnostic adrenal photoscanning agent. Part - I. | Cholesteryl iodide-125I was prepared and administered intravenously to rabbits. After six days, tissue distribution studies indicated a good target to non-target ratio with selective concentration in adrenal glands. | 504,795 | [
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The interaction between the diaphragm, intercostal/accessory muscles of inspiration and the rib cage. | During Mueller maneuvers (MM), the volume change of rib cage, delta Vrc, and abdomen, delta Vab, are equal and opposite. Thus delta Vrc = -delta Vab. Substituting delta Prc.Crc for delta Vrc and delta Pab.Cab for delta Vab yields: delta Prc = - delta Pab.Cab/Crc, where delta Prc, delta Pab, Crc and Cab are applied pres... | 504,827 | [
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[Measurement of multiregional blood volumes: a cerebral vascular autoregulatory phenomenon (author's transl)]. | The variations in regional cerebral blood volume (RCBV) during controlled severe hypotension induced by sodium nitroprusside were studied in a series of 29 patients with aneurysms (14), meningiomas (6) and arteriovenous malformations. Two characteristic variations were noted. The RCBV and mean blood pressure (MPB) vary... | 504,867 | [
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... |
Persistence of circadian rhythms of RNA, DNA and protein in the rat adrenal and thyroid under continuous darkness conditions. | Continuous darkness regimen applied to rats for 30 days did not significantly alter the patterns of the circadian rhythms of RNA, DNA and total protein in the thyroid and adrenals. These results show that the dominant role of light as a "Zeitgeber" cannot be generalized in the case of the biorhythms studied. | 504,958 | [
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High level of human growth hormone (HGH) in cerebrospinal fluid patients with pituitary tumors. | Six patients with suprasellar extension of pituitary HGH-secreting tumors showed the cerebrospinal fluid (CSF) content in human growth hormone (HGH) to be very high, i.e. 164.3 +/- muU/ml (mean +/- SEM) (range 8.4--413.8 muU/ml) as compared to ten patients with uncomplicated acromegaly whose values were 50-fold lower, ... | 504,962 | [
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-... |
Stimulation of abducens nucleus supports classical conditioning of the nictitating membrane response. | The acquisition and terminal performance of a classical conditioning group compared with a control group indicated that extension of the nictitating membrane elicited by direct electrical stimulation of the abducens nucleus was successfully conditioned to a previously neutral stimulus. The conditioning so obtained was ... | 504,990 | [
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0.05287236,
-0.59666,
0.08566111,
0.3045472,
-0.336331,
0.1286912,
... |
Gamma rays: further evidence for lack of a threshold dose for lethality to human cells. | In experiments designed to measure human cell survival sith +/- 2 percent accuracy it was found that low doses (21 to 87 rad) of gamma-rays inactivated the colony-forming ability of cultured human cells with a probability of 0.00226 +/- 0.00012 per rad. There appears to be no threshold for the lethality of radiation to... | 504,991 | [
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Dolphin lung collapse and intramuscular circulation during free diving: evidence from nitrogen washout. | Intramuscular nitrogen tensions in Tursiops truncatus after a schedule of repetitive ocean dives suggest a lung collapse depth of about 70 meters and suggest that intramuscular circulation is maintained during unrestrained diving in the open ocean. Therefore, the bottle-nosed dolphin is not protected by lung collapse f... | 505,001 | [
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0.09865509,... |
Temperature-dependent sex determination in turtles. | The sex of hatchling map turtles is determined by incubation temperature of eggs in the laboratory as well as in nature. Temperature controls sex differentiation rather than causing a differential mortality of sexes. Temperature has no effect on sex determination in a soft-shelled turtle. | 505,003 | [
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Pyruvate dehydrogenase activation in adipocyte mitochondria by an insulin-generated mediator from muscle. | Material in a chromatographic fraction from an extract of insulin-treated muscle stimulated pyruvate dehydrogenase activity in addipocyte mitochondria. This action was similar to insulin's activation of the enzyme in a plasma membrane-mitochondria mixture. Neither the chromatographic fraction nor insulin required adeno... | 505,013 | [
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Clonal characteristics of experimentally induced "atherosclerotic" lesions in the hybrid hare. | The female hybrid hare (Lepus timidus x Lepus europaeus) is heterozygous for electrophoretically separable, X-linked isoenzymes of glucose-6-phosphate dehydrogenase. The isoenzymes of this animal have been used as cellular markers in the study of the clonal origins of experimentally induced atherosclerotic lesions. Aor... | 505,016 | [
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0.06868226,
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Percutaneous needle biopsy for diagnosis of pancreatic cancer. | Percutaneous fine needle aspiration biopsy of the pancreas is a safe procedure, which may be done inexpensively and rapidly accomplished with high diagnostic accuracy. The major drawback of this technique is the need for a competent cytopathologist for specimen interpretation. It is quite possible, as more trained pers... | 505,023 | [
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Carbon dioxide laser in otolaryngology. | Laser therapy has been an addition to our therapeutic armamentarium. Although in certain conditions (ie, webs, granulomas, and to a lesser degree papillomas) it has been serviceable, conventional methods of treatment are used in the majority of our patients. | 505,068 | [
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Miliary tuberculosis and consumption of clotting factors by multifocal vasculopathic coagulation. | We have reported a third case of miliary tuberculosis and associated consumption coagulopathy. It is proposed that clotting factors may be locally consumed, thus producing the syndrome of "multifocal vasculopathic coagulation." | 505,090 | [
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0.0506... |
Fine-needle percutaneous cholangiography followed by drainage of the biliary system: An initial report. | Fine-needle percutaneous transhepatic cholangiography has gained popularity for investigating patients with obstructive jaundice, after which percutaneous drainage of the biliary tree is frequently carried out. The technique is described and the results from 10 patients in whom the procedure was carried out are discuss... | 505,197 | [
0.07172167,
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0.1508398... |
Tuberculous endocarditis: A report of 2 cases. | Two patients with tuberculous endocarditis are described. In one patient the condition developed on a mitral valve prosthesis and in the other in thrombus adherent to a ventriculo-atrial shunt. | 505,202 | [
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... |
Granulomatous ochronosis -- a cosmetic-induced skin disorder in Blacks. | More skin eruptions than previously are appearing in Blacks after the application of a variety of topical cosmetics. Clinical and histological descriptions of these conditions are reviewed and classified. Four cases of sarcoid-like foreign-body granulomas are reported. The stricter control of cosmetics is recommended. | 505,210 | [
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Penetrating wounds of the buttock. | Results of a study of 15 patients with penetrating wounds of the buttock managed during a recent five year period suggest that penetrating trauma to the buttock is a distinct injury syndrome accompanied by serious intestinal, bladder or vascular damage. Following a complete history, physical examination and appropriate... | 505,260 | [
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0.153... |
Structural alterations to the pulmonary circulation in fulminant hepatic failure. | Like patients with chronic liver disease, those with coma due to fulminant hepatic failure may show arterial hypoxaemia even in the absence of pulmonary complications, and in both it is attributed to increased intrapulmonary arteriovenous admixture. This study is concerned with the structural alterations in the pulmona... | 505,339 | [
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Pulmonary hypertension accompanying ventricular septal defect and patent ductus arteriosus. Management in infancy and early childhood. | Forty-one infants and children with the combination of patent ductus arteriosus (PDA) and ventricular septal defect (VSD) were encountered over 20 years. Twenty-four presented in infancy with congestive cardiac failure. Pulmonary hypertension was present in 32, the cause in 19 being increased pulmonary blood flow. Incr... | 505,340 | [
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Tuberculin reactivity as a predictor of survival time in inoperable bronchial carcinoma. | One hundred and two patients with inoperable bronchial carcinoma who had tuberculin tests at the time of diagnosis were followed up to see if there was any correlation between their degree of tuberculin reactivity and their subsequent survival time. There was a significant difference in survival between positive and ne... | 505,347 | [
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Effect of diuresis on urokinase excretion rate. | UK excretion rate in the diuretic state was investigated in human and animal studies. Loading of water, beer or diuretics in man decreased the UK excretion rate as urine flow increased. A linear relation between UK excretion rate and urine specific gravity was observed. Simultaneous loading of water and exercise suppre... | 505,366 | [
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The effect of agents which modify platelet behaviour and of magnesium ions on thrombus formation in vivo. | The ability of potential anti-thrombotic agents to modify platelet-thrombus formation in injured cerebral arteries in the rabbit was tested. Low doses of heparin were without effect, while higher doses produced variable suppression of white body formation but at the expense of bleeding. Aspirin did not inhibit white bo... | 505,367 | [
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... |
An acquired abnormal fibrinogen associated with thromboembolic disease and pseudotumor cerebri. | An abnormal fibrinogen was found in a patient associated with disabling recurrent phlebitis and pulmonary emboli, pseudotumor cerebri, gout and endometriosis. The fibrinogen is characterized by (1) abnormal side-to-side and end-to-end polymerization, (2) abnormal fibrinopeptide release, (3) a delayed gamma-gamma dimeri... | 505,412 | [
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Induction of cataracts in the rat by derivatives of (4' -pyridyl) - 1 piperazine. | A structure ocular toxicity study in the rat of (4' - pyridyl) - 1 piperazine and of some derivatives with psychopharmacological profile, allows some interesting conclusions. (4' - pyridyl) - 1 piperazine does not lead to crystalline lens opacity, though some aryloxypropanol or aryloxypropyl derivatives do. At least, (... | 505,449 | [
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Effect of STA-MCA anastomosis on the course of experimental acute MCA embolic occlusion. | The experiments in this report were designed to evaluate the effect of superficial temporal-middle cerebral artery (STA-MCA) anastomosis on the course of middle cerebral artery (MCA) occlusion by emboli while avoiding a vessel clipping technique as well as the use of long-acting barbiturate anesthesia. Dogs were divide... | 505,474 | [
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Prognosis in patients with infarction and TIA in carotid territory during and after anticoagulant therapy. | One hundred seventeen patients, 31 with TIA and 86 with cerebral infarction, had angiographically verified atherosclerosis within the relevant carotid artery territory and normal CSF. They were treated with anticoagulants for a mean of 11.1 months. No TIA but 1 cerebral infarction, appearing during inadequate anticoagu... | 505,492 | [
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Mechanisms involved in the weak alloimmunogenicity of Thy-1 on mouse brain. | Immunization of mice with allogeneic brain homogenates fails to elicit an appreciable response to the Thy-1 antigen. The aim of the present study was to determine the mechanism of the low immunogenicity of allogeneic brain. Immunization of C3H mice with freshly prepared mixtures of AKR/J thymus cells with either AKR/J ... | 505,543 | [
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Delayed hemolytic transfusion reaction caused by the second example of anti-K19. | A second example of anti-K19 has been identified in the serum of a black patient immunized by blood transfusions. The antibody was responsible for delayed hemolysis of transfused incompatible red blood cells. The patient's red blood cells are K:--19 but are otherwise of common Kell phenotype. The K19 antigen is closely... | 505,537 | [
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0.2468568,
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The clinical and aetiological pattern of finger clubbing and hypertrophic osteoarthropathy in Nigerians. | A study of the clinical and aetiological patterns of finger clubbing and hypertrophic osteoarthropathy was carried out over a 15-year period. 116 patients were studied. Pain is not a common symptom in patients with finger clubbing and osteoarthropathy in Nigerians, contrary to what has been reported in the literature. ... | 505,549 | [
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0.1701816,
0.1828072,
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... |
Machakos Project studies. Agents affecting health of mother and child in a rural area of Kenya. XIII. Spatial contagion in measles epidemics. | The Machakos Project has yielded data by which it is possible to analyse spatial aspects of contagion in measles epidemics. Problems of geographical scale and interaction patterns occlude the spatial factor and rather different spectra of outbreaks were seen when the data are analysed at sub-location level. The likely ... | 505,564 | [
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[Subcellular localization of low-molecular RNA in the cells of chick embryos]. | The subcellular distribution of chick embryo low molecular weight RNAs has been studied by the thermal phenol fractionation procedure. The major part of 8SII RNA, earlier discovered in some oncornaviruses and normal cells, was extracted by phenol at 4%. Our results thus give evidence of the cytoplasmic localization of ... | 505,569 | [
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0.2987877,
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0... |
[Change in the karyotypic structure of mouse and rat rhabdomyosarcomas on their transplantation into the anterior chamber of the eye]. | A study has been made of 7 transplatable lines of mice rhabdomyosarcomas and one line of rat rhabdomyosarcoma during their transplantation into the eye anterior chamber subcutaneous tissue. In all, 10 subcutaneous transplants and 15 transplants into the eye anterior chamber (EAC) were examined. Etanol fixed print smear... | 505,580 | [
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[Analysis of the cellular interaction of 2 transplantable lines in mixed culture]. | A relationship between two transformed cell lines (L and HEp-2) has been studied at different population densities. L cells were inhibited at a low, but not at a high density. We noted specific cell structures in mixed culture at a low density. Crowded cells did not form such structures at the same conditions. Possible... | 505,581 | [
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... |
Ovine facioliasis (Fasciola gigantica) on the Ahmadu Bello University farm. | Outbreaks of fascioliasis (Fasciola gigantica) in sheep were observed on the Ahmadu Bello University farm during the end of the dry season in 1972-74 and in 1978. During 1972 especially the pregnant ewes were affected. Pre- and post-mortem exmaination of the affected sheep showed typical signs of acute fascioliasis; th... | 505,587 | [
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A contribution to the formation mechanism of calcium oxalate urinary calculi. IV. Experimental investigations of the intrarenal crystallisation of calcium oxalate in rabbit. | Rabbits were given glyoxylic acid to induce intrarenal calcium oxalate crystal formation. The point of crystallisation in the renal tubule, the structure and the composition of the intrarenal crystals were studied. The initial crystallisation takes place in the proximal tubule. Calcium phosphate formation was excluded ... | 505,683 | [
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0.5104563,
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Techniques of urinary undiversion surgery in children. | During the past eight years, reestablishment of previously diverted urinary tracts has become more frequent. During the past three years, 11 patients have been evaluated and 7 subsequently operated on to reestablish continuity of the urinary tract. Four patients were eliminated from surgical consideration because of th... | 505,694 | [
-0.1304739,
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0.01617166,
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Computed tomographic evaluation of pear-shaped bladder. | Computed tomography (CT) was used to distinguish between pelvic lipomatosis and idiopathic inferior vena caval thrombosis as a cause of a pear-shaped bladder seen on intravenous urography. The findings on CT were explicit in explaining the patient's clinical problem. | 505,708 | [
0.06492123,
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... |
[Prolonged peripheral arteriovenous perfusion with a membrane oxygenator]. | The authors have developed the optimal method of performing prolonged veno-arterial perfusion and studied its influence on the animal organism. In 22 experiments a membrane oxygenator on the national film "Sigma" was used. It has been established that for successful performing of prolonged veno-arterial perfusion it is... | 505,784 | [
-0.2993831,
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0.2414814,
0.2070989,
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0.08243741,
... |
[Surgical errors in acute diseases of the abdominal cavity organs]. | Case histories of dead patients were analyzed in whose life-time errors were made in diagnosis of acute abdomen. It was established that in 90 patients acute abdomen was hypodiagnozed, in 10 cases the abdominal catastrophe was hyperdiagnozed, in 4 patients the localization of the injured organ was not determined proper... | 505,790 | [
-0.230266,
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0.3730352,
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-0.01945388,
-0.1509079,
0.1813934,
0.3839619,
0.09517634,
-0.11841... |
[Dynamics of the total proteolytic activity and kinin system components of the blood in acute cholecystitis]. | Under study was the dynamics of changes of the activity of components of the kinin system and proteolytic activity of blood in 32 patients with acute cholecystitis. The results have shown that cholecystic patients and patients with the diseases of biliary ducts, especially in the exacerbation stage, have pronounced shi... | 505,795 | [
0.09490468,
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0.2720533,
0.1701295,
0.1677683,
0.02243488,
0.10725,
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0.3183536,
0.08389117,
0.3330226,
0.275764,
-0.1737804,
-0.2875084,
0... |
[Optimal local hypothermia regimen in the experimental resection of the single kidney]. | The morphological and functional changes of the single kidney were investigated in experiment on 133 dogs after removal of 45--50% of its tissue. Resection of the single kidney under normothermal conditions was established to result in the animal's death within 1--14 days due to acute renal insufficiency. The operation... | 505,807 | [
0.001409642,
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0.3268217,
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0.1701734,
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0.2964297,
0.006509108,
0.3107659,
-0.04757539,... |
[Effect of panangin on potassium level in patients with non-specific ulcerative colitis]. | Daily injections of panangin to patients with non-specific ulcerative colitis results in the increased concentration of potassium in biological media of the organism. | 505,826 | [
-0.2512994,
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0.1268713,
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0.2157212,
0.2283282,
0.1654873,
0.04672376,
... |
[Postoperative complications and mortality in 3d stage cancer of the proximal part of the stomach]. | The author has made an analysis of postoperative complications and fatal outcomes in cancer of stage-III of the proximal portion of the stomach. An increased volume of the operation, involvement of the esophagus, transpleural access used in patients older than 50 increased the number of complications and fatal outcomes... | 505,835 | [
-0.05590829,
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-0.3371244,
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0.05307207,
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0.2180727,
0.2369921,
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-0.08550549,
0.4281126,
0.09071095,
0.1326218,
0.5014378,
0.4518665,
-0.09893968,
... |
[Late results of the surgical treatment of pulmonary and pleural complications following pneumonia in children]. | Study of remote results of the surgical treatment of pulmonary-pleural complications of acute pneumonia in children permitted evaluating the efficiency of various methods. Drainage of the pleural cavity resulted in complete recovery if the suffering was caused by a small subpleural zone of necrosis. Suturing of destruc... | 505,847 | [
0.1016718,
-0.09789415,
-0.1314646,
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-0.1786494,
-0.2793992,
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0.1481306,
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0.03510898,
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0.05600871,
0.3035323,
0.006741166,
0.43865,
0.03216935,
-0.04352108,
... |
Surgical intervention to relieve dystocia in a python. | The surgical procedure adopted to remove non-riable eggs from the oviduct of a python, Python anchitae, is described. Recovery was satisfactory, although it was not possible to establish whether reproduction was impaired. Reasons for the type of anaesthesia used and the choice of incision made are given. | 505,907 | [
0.1878213,
-0.1081352,
-0.05924521,
-0.3928229,
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0.1928149,
-0.2486552,
0.3110106,
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0.03318269,
-0.3136497,
0.108693,
-0.01087802,
-0.174734,
... |
Selection of a high performance liquid chromatographic cleanup procedure for the determination of organochlorine pesticides in fatty biological extracts. | Two different high performance liquid chromatographic cleanup methods, absorption chromatography and nonaqueous reversed-phase chromatography, were investigated and their respective adventages discussed. The first was performed on 5 cm silica and alumina columsn, while for the latter a 5 cm octadecylilica column was us... | 505,944 | [
-0.1095657,
0.2658043,
0.1086045,
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0.095904,
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0.2194295,
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-0.007925902,
0.1128683,
0.4565404,
-0.0818853,
0.1757395,
-0.2422443,
... |
Accidental acute mercury vapor poisoning. | Accidental acute mercury vapor poisoning in three persons is reported. Three hours after exposure, symptomatology began by chills, vomiting, diarrhea and chest pain. Two patients, respectively 67 and 77 year old, presented severe pulmonary edema, then neurological symptoms with tremor and coma. This toxic pulmonary ede... | 505,988 | [
-0.1065747,
0.05635854,
-0.1753698,
-0.1578405,
0.3550535,
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-0.06042525,
-0.01273041,
0.1043348,
0.0751771,
-0.128846,
0.04045293,
0.162301,
0.1883183,
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0.1106522,
0.06647985,
0.3311863,
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0.2845759,
-0.2534445,
-... |
[Serum sialic acid concentration in healthy cattle and cattle with bronchopneumonia]. | Studied was the content of sialic acid in the blood serum of cattle at different age and in the conditions of bronchopneumonia. It was found that at birth the calves showed considerably higher values of sialic acid as against the adult normal animals. At the age of 15--30 days sialic acid in calves reached the level in... | 506,060 | [
-0.009789826,
-0.2294064,
0.03045153,
-0.1440893,
-0.09199163,
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0.1906978,
-0.3053894,
-0.1126625,
0.01222652,
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0.03771449,
-0.1215812,
0.1079501,
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0.07427356,
0.1614905,
0.1804313,
0.3015758,
0.2747461,
-0.131973... |
[Clinical TNM classification of malignant soft tissue neoplasms]. | A project for the classification of malignant soft tissue tumors according to the TNM system is suggested for a wide discussion. The classification takes into account the effect of some leading factors (histological type of a tumor, its size, the state of regional lymph nodes, the degree of the adjacent tissues infiltr... | 506,173 | [
-0.1329528,
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0.02095764,
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0.07207299,
0.133599,
0.5835247,
0.2350436,
0.4159494,
-0.01162275,
-0.2721815,
... |
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