1. Spontaneous external biliary fistulae;Henry, C.I.; Orr, T.G.;Surgery
2. Spontaneous external biliary fistulae;Fitchett, C.W.;Va Med,1970
3. Acute free perforation of the gallbladder;Niemeier, O.W.;Ann Surg
4. Biliary enteric fistula;Glenn, F.; Reed, C.; Grafe, W.R.;Surg Gynecol Obstet
5. Diseases of the Liver and Biliary System;Sherlock, S.,1985