Some observations on multiple sclerosis.
D000293:Adolescent; D000328:Adult; D002648:Child; D006801:Humans; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000150:complications / Q000453:epidemiology; D010243:Paralysis / Q000209:etiology; D012008:Recurrence; D014786:Vision Disorders / Q000209:etiology