Annular pancreas: case report of an African patient.
D000328:Adult; D044383:Black People; D004380:Duodenal Obstruction / Q000209:etiology; D005763:Gastroenterostomy; D006801:Humans; D008297:Male; D010179:Pancreas / Q000002:abnormalities*; D013276:Stomach Ulcer / Q000150:complications; D014628:Vagotomy