{"0": "Cognitive impairment", "1": "Mental deterioration", "2": "Muscle abnormality related to mitochondrial dysfunction", "3": "Abnormality of the cerebrospinal fluid", "4": "Abnormal muscle fiber morphology", "5": "Corneal opacity", "6": "Abnormal retinal morphology", "7": "Lower limb spasticity", "8": "Abnormal retinal artery morphology", "9": "Optic disc pallor", "10": "Dementia", "11": "Abnormal lower limb bone morphology", "12": "Disproportionate short stature", "13": "Abnormal vertebral morphology", "14": "Abnormality of head blood vessel", "15": "Abnormal myocardium morphology", "16": "Mitochondrial myopathy", "17": "Ragged red muscle fibers", "18": "Abnormal circulating lipid concentration", "19": "Abnormality of femur morphology", "20": "Biliary tract abnormality", "21": "Cherry red spot of the macula", "22": "Abnormal bone structure", "23": "Horizontal nystagmus", "24": "Abnormal cellular phenotype", "25": "Proximal tubulopathy", "26": "Frequent falls", "27": "Sensorimotor neuropathy", "28": "Abnormal enchondral ossification", "29": "Abnormal tissue metabolite concentration", "30": "Hypertrophic cardiomyopathy", "31": "Abnormal visual electrophysiology", "32": "Bulbar signs", "33": "Abnormality of fontanelles", "34": "Abnormality of extrapyramidal motor function", "35": "Incoordination", "36": "Abnormality of epiphysis morphology", "37": "Abnormality of coordination", "38": "Spastic paraplegia", "39": "Aplasia hypoplasia of toe", "40": "Increased csf lactate", "41": "Psychomotor deterioration", "42": "Abnormality of the mitochondrion", "43": "Abnormal pyramidal sign", "44": "Functional motor deficit", "45": "Abnormal biliary tract morphology", "46": "Abnormal circulating cholesterol concentration", "47": "Kyphosis", "48": "Abnormal epiphyseal ossification", "49": "Paraplegia paraparesis"}