title: Parkinsonism in the Nigerian African: a prospective study of 217 patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria; D010300:Parkinson Disease / Q000453:epidemiology*; D011446:Prospective Studies; D012737:Sex Factors