1. Department of Public Health, School of Medicine Yokohama City University Yokohama Japan
2. Department of General Internal Medicine National Cancer Center Hospital Tokyo Japan
3. Department of Diabetes, Metabolism and Endocrinology Ichikawa Hospital, International University of Health and Welfare Ichikawa Japan
4. Division of Endocrinology and Metabolism St. Luke's International Hospital Tokyo Japan
5. Department of Molecular Diabetic Medicine Diabetes Research Center, National Center for Global Health and Medicine Tokyo Japan
6. Institute for Cancer Control National Cancer Center Japan Tokyo Japan
7. Division of Diabetes, Department of Internal Medicine, Metabolism and Endocrinology Jikei University School of Medicine Tokyo Japan
8. Chemotherapy Center Sendai Kousei Hospital Sendai Japan
9. Department of Oncology Center Yamaguchi University Hospital Yamaguchi Japan
10. Department of General Medicine Juntendo University Graduate School of Medicine Tokyo Japan
11. General Practice, Faculty of Medicine Juntendo University Tokyo Japan
12. Department of Clinical Oncology, Faculty of Medicine Kagawa University Takamatsu Japan
13. Division of Internal Medicine and Medical Oncology Kodaira Hospital Saitama Japan
14. Faculty of Medicine Hokkaido University Sapporo Japan
15. Department of Surgery Kyushu University Beppu Hospital Beppu Japan
16. Department of Medical Oncology Toranomon Hospital Tokyo Japan
17. Department of Molecular Microbiology, Research Institute for Microbial Diseases Osaka University Suita Japan
18. Division of Cancer Epidemiology and Prevention Aichi Cancer Center Aichi Japan
19. Division of Molecular Pathology, The Institute of Medical Science The University of Tokyo Tokyo Japan
20. Department of Metabolism and Endocrinology Juntendo University Graduate School of Medicine Tokyo Japan