{"0": "Cognitive impairment", "1": "Dementia", "2": "Horizontal nystagmus", "3": "Mental deterioration", "4": "Muscle abnormality related to mitochondrial dysfunction", "5": "Abnormal biliary tract morphology", "6": "Respiratory distress", "7": "Bulbar signs", "8": "Optic disc pallor", "9": "Biliary tract abnormality", "10": "Polyneuropathy", "11": "Mitochondrial myopathy", "12": "Ectopic calcification", "13": "Abnormal activity of mitochondrial respiratory chain", "14": "Postural tremor", "15": "Peripheral axonal neuropathy", "16": "Action tremor", "17": "Poor head control", "18": "Peripheral demyelination", "19": "Rigidity", "20": "Sensorimotor neuropathy", "21": "Schizophrenia", "22": "Hyperintensity of cerebral white matter on mri", "23": "Scotoma", "24": "Abnormality of corneal stroma", "25": "Functional motor deficit", "26": "Corneal opacity", "27": "Abnormal retinal artery morphology", "28": "Central scotoma", "29": "Episodic vomiting", "30": "Impaired proprioception", "31": "Optic neuropathy", "32": "Myoclonic seizure", "33": "Vascular skin abnormality", "34": "Exercise intolerance", "35": "Abnormal epiphyseal ossification", "36": "Poor eye contact", "37": "Myoclonus", "38": "Abnormal peripheral nervous system physiology", "39": "Impaired vibratory sensation", "40": "Abnormal muscle fiber morphology", "41": "Toe walking", "42": "Muscle stiffness", "43": "Gowers sign", "44": "Decreased activity of mitochondrial complex i", "45": "Very long chain fatty acid accumulation", "46": "Epiphyseal stippling", "47": "Abnormal peripheral myelination", "48": "Abnormality of head blood vessel", "49": "Difficulty walking"}