Friedreich's ataxia.
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000150:complications; D002490:Central Nervous System / Q000473:pathology; D005621:Friedreich Ataxia / Q000150:complications / Q000235:genetics / Q000473:pathology; D006801:Humans; D008297:Male; D009206:Myocardium / Q000473:pathology; D009759:Nystagmus, Pathologic / Q000209:etiology; D012600:Scoliosis / Q000209:etiology; D013064:Speech Disorders / Q000209:etiology