Family influence on incidence of intestinal parasites among Nigerian children.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007223:Infant; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology*; D008297:Male; D009549:Nigeria; D012923:Social Class; D012959:Socioeconomic Factors