Bowel disease in rural blacks.
D001741:Black or African American; D001064:Appendicitis / Q000453:epidemiology; D044383:Black People; D003110:Colonic Neoplasms / Q000453:epidemiology; D005260:Female; D006484:Hemorrhoids / Q000453:epidemiology; D006801:Humans; D007410:Intestinal Diseases / Q000453:epidemiology*; D008297:Male; D012424:Rural Population; D013019:South Africa