Diverticular disease in urban blacks.
D001741:Black or African American; D044383:Black People; D003937:Diagnosis, Differential; D004239:Diverticulitis, Colonic / Q000175:diagnosis* / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D013019:South Africa; D014505:Urban Population