Kubicka S, Rudolph KL, Tieze MK, et al: Phase II study of systemic gemcitabine chemotherapy for advanced unresectable hepatobiliary carcinomas. Hepatogastroenterology 48: 783-789, 2001.
Steven RA, Hani AK, Michelle RM, et al: Gemcitabine, 5-fluorouracil, and leucovorin in advanced biliary tract and gall bladder carcinoma. Cancer 103(1): 111-118, 2005.