title: Epidemiologic contributions to multiple sclerosis: an overview.
mesh_terms: D000293:Adolescent; D000328:Adult; D000349:Africa; D001208:Asia; D001315:Australia; D002170:Canada; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000453:epidemiology; D005060:Europe; D005061:Europe, Eastern; D005260:Female; D006801:Humans; D007055:Iceland; D007223:Infant; D007231:Infant, Newborn; D007557:Israel; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000453:epidemiology*; D009520:New Zealand; D012306:Risk; D014171:Transients and Migrants; D014481:United States