Multiple sclerosis in South Africa.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004777:Environment; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009103:Multiple Sclerosis / Q000453:epidemiology / Q000209:etiology*; D013019:South Africa