Affiliation: | ∗ Division of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Chiba, Japan;† Department of Hepatobiliary and Pancreatic Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan;‡ Department of Radiation Oncology, National Cancer Center Hospital, Tokyo, Japan;§ Department of Epidemiology and Biostatistics, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan;‖ Department of Clinical Oncology, Jichi Medical University, Tochigi, Japan;¶ Department of Gastroenterology, Aichi Cancer Center Hospital, Nagoya, Japan;∗∗ Department of Gastroenterology, Sapporo Kosei General Hospital, Sapporo, Japan;†† Hepatobiliary and Pancreatic Division, Cancer Institute Hospital, Tokyo, Japan;‡‡ Department of Internal Medicine, Medical Oncology School of Medicine, Kyorin University, Tokyo, Japan;§§ Kyoto Unit Center, Japan Environment and Children''s Study, Kyoto University Graduate School of Medicine, Kyoto, Japan;‖‖ Department of Biostatistics, Kyoto University School of Public Health, Kyoto, Japan;¶¶ Hepatobiliary and Pancreatic Oncology Division, National Cancer Center Hospital, Tokyo, Japan |