Studies on the natural history of multiple sclerosis. 1. Design and diagnosis.
D000328:Adult; D000375:Aging; D002980:Climate; D004813:Epidemiology; D005843:Geography; D006801:Humans; D008297:Male; D008887:Military Medicine; D009103:Multiple Sclerosis / Q000175:diagnosis* / Q000453:epidemiology*; D009460:Neurologic Examination; D009461:Neurologic Manifestations; D009902:Optic Neuritis; D011379:Prognosis; D012494:Sampling Studies; D014481:United States