1. Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka 411-8777, Japan
2. Regional Resources Division, Shizuoka Cancer Center Research Institute, Shizuoka 411-8777, Japan
3. Division of Pathology, Shizuoka Cancer Center Research Institute, Shizuoka 411-8777, Japan
4. Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, Shizuoka 411-8777, Japan
5. Medical Genetics Division, Shizuoka Cancer Center Research Institute, Shizuoka 411-8777, Japan
6. Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute, Shizuoka 411-8777, Japan
7. Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute, Shizuoka 411-8777, Japan
8. Division of Gene Regulation Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo 160-858, Japan
9. Shizuoka Cancer Center, Shizuoka 411-8777, Japan