1. Division of Molecular Diagnosis and Cancer Prevention; Saitama Cancer Center; Saitama Japan
2. Department of Surgery; Kurume University; Fukuoka Japan
3. Department of Surgery; Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital; Tokyo Japan
4. Hereditary Tumor Research Project; Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital; Tokyo Japan
5. Center for Clinical Epidemiology; Graduate School of Public Health Planning Office; St. Luke's International University; OMURA Susumu & Mieko Memorial; St. Luke's Center for Clinical Academia; Tokyo Japan
6. Department of Digestive Tract and General Surgery; Saitama Medical Center; Saitama Medical University; Saitama Japan
7. Department of Pathology; Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital; Tokyo Japan
8. Division of Gastroenterological Surgery; Saitama Cancer Center; Saitama Japan