1. Gallstone ileus. A report of 23 cases;Buetow;Arch Surg,1963
2. Gallstone obstruction of the intestine: an analysis of ten patients and a review of the literature;van Hillo;Surgery,1987
3. Intestinal obstruction due to gallstones;Dulin;Arch Surg,1939
4. Gallstone ileus in the absence of a gallbladder;Lindsey;A case report. Arch Surg,1975
5. Gallstone obstruction of the small bowel occurring in the absence of a gallbladder;Warner;Surgery,1951