1. Department of Surgery Kyushu University Beppu Hospital BeppuJapan
2. Department of Gastroenterological Surgery Osaka University SuitaJapan
3. Department of Hepatobiliary‐pancreatic surgery National Kyushu Cancer Center FukuokaJapan
4. Department of Medical Biochemistry Kurume University KurumeJapan
5. Laboratory of DNA Information Analysis Human Genome Center Institute of Medical Science University of Tokyo TokyoJapan
6. Division of System Biology Graduate School of Medicine Nagoya University Nagoya Japan
7. Division of Bioinformatics Medical Institute of Bioregulation Kyushu University FukuokaJapan
8. Department of Surgery Kitazato University SagamiharaJapan
9. Digestive Disease Center Northern Yokohama Hospital Showa University YokohamaJapan
10. Department of Surgery Tokyo Medical and Dental University TokyoJapan
11. Department of Surgery National Defense University TokorozawaJapan
12. Department of Surgery Mie University TsuJapan
13. Department of Surgery Takano Hospital KumamotoJapan
14. Department of Surgery and Digestive Tract Medicine National Cancer Center TokyoJapan
15. Department of Medical Genome Sciences Graduate School of Frontier Sciences University of Tokyo Kashiwa Japan