1. Perforation of the gallbladder. A study of twenty-five consecutive cases;Cowley;Surg. Gynec. & Obst.,1943
2. Perforation of the gallbladder;Fletcher;Am. J. Surg.,1951
3. Acute free perforation of the gallbladder;Niemeier;Ann. Surg.,1934
4. Spontaneous internal biliary fistula;Puestow;Ann. Surg.,1942
5. Internal biliary fistulas. A discussion of internal biliary fistulas based on twenty-nine cases;Dean;Surgery,1939