Multiple sclerosis in Vestfold, Norway.
D000293:Adolescent; D000328:Adult; D000375:Aging; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000453:epidemiology* / Q000235:genetics*; D009664:Norway; D009902:Optic Neuritis / Q000453:epidemiology; D012723:Sex