1. Pathologie und Chirurgie der Gallenwege;Courvoisier,1890
2. Spontaneous external biliary fistula;Fitchett;Virginia Medical Monthly,1970
3. Cholecystocutaneous fistula;Gibson;British Journal of Clinical Practice,1987
4. Spontaneous cholecystocutaneous fistula;Hakaim;Cleveland Clinic Quarterly,1986
5. Ueber estraperitoneale perforatio der Gallen-blase;Horhammer;Munchener Medizinische Wochenschrift,1916