1. Spontaneous internal biliary fistula;Puestow;Ann Surg,1942
2. Diseases of the gall-bladder and bile-ducts;Robson,1904
3. Spontaneous internal biliary fistula and gallstone obstruction;Borman;Surgery,1937
4. Spontaneous biliary-enteric fistulas;Porter;Surgery,1970
5. Spontaneous gastrointestinal biliary fistula complicating duodenal ulcer;Kourias;Surg Gynecol Obstet,1964