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2. Miller BA, Kolonel LN, Bernstein L, et al, eds. Racial/Ethnic Patterns of Cancer in the United States 1988–1992, National Cancer Institute. NIH Pub. No. 96-4104. Bethesda, MD, 1996.
3. Tumors of the pancreas, gallbladder, and extrahepatic bile ducts;Beazley,1995
4. Gastrointestinal cancer;Bernhard,1998
5. Surgical and interventional palliative treatment of upper gastrointestinal malignancies;Rice;Eur J Gastroenterol Hepatol,2000