{"0": "Cognitive impairment", "1": "Muscle abnormality related to mitochondrial dysfunction", "2": "Sensorimotor neuropathy", "3": "Abnormal retinal artery morphology", "4": "Abnormal circulating cholesterol concentration", "5": "Hepatomegaly", "6": "Abnormal biliary tract morphology", "7": "Biliary tract abnormality", "8": "Dementia", "9": "Scotoma", "10": "Bulbar signs", "11": "Abnormal cellular phenotype", "12": "Muscle stiffness", "13": "Central scotoma", "14": "Optic atrophy", "15": "Abnormality of corneal stroma", "16": "Abnormality of head blood vessel", "17": "Abnormal tissue metabolite concentration", "18": "Left ventricular hypertrophy", "19": "Mitochondrial myopathy", "20": "Ventricular arrhythmia", "21": "Cherry red spot of the macula", "22": "Mental deterioration", "23": "Ragged red muscle fibers", "24": "Disproportionate short stature", "25": "Elevated pulmonary artery pressure", "26": "Horizontal nystagmus", "27": "Morphological abnormality of the pyramidal tract", "28": "Delusions", "29": "Abnormality of pulmonary circulation", "30": "Ventricular hypertrophy", "31": "Macular degeneration", "32": "Hyperlipidemia", "33": "Abnormal auditory evoked potentials", "34": "Impaired proprioception", "35": "Abnormal csf protein level", "36": "Peripheral demyelination", "37": "Polyneuropathy", "38": "Clumsiness", "39": "Postural tremor", "40": "Macroglossia", "41": "Focal white matter lesions", "42": "Toe walking", "43": "Optic neuropathy", "44": "Abnormality of the optic nerve", "45": "Global brain atrophy", "46": "Impaired vibratory sensation", "47": "Abnormal enchondral ossification", "48": "Ankle clonus", "49": "Resting tremor"}