[Epidemiological and statistical study of multiple sclerosis group in Japan].
D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000453:epidemiology* / Q000209:etiology; D009902:Optic Neuritis / Q000150:complications