1. Nagoya University, Nagoya, Japan
2. Japan Community Health Care Organization Funabashi Central Hospital, Chiba, Japan
3. Shimoshizu National Hospital, Chiba, Japan
4. Keio University School of Medicine, Tokyo, Japan
5. University of Toyama, Toyama, Japan
6. Osaka City University, Osaka, Japan
7. Sanmu Medical Center, Chiba, Japan
8. Jichi Medical University, Tochigi, Japan
9. Kitasato University, Kanagawa, Japan
10. Kurume University, Fukuoka, Japan
11. Akita University, Akita, Japan
12. Tokyo Medical University, Tokyo, Japan
13. Osaka Medical College, Osaka, Japan
14. Fukushima Medical University, Fukushima, Japan
15. The University of Tokyo, Tokyo, Japan
16. Eastern Chiba Medical Center, Togane, Japan
17. Shinshu University, Nagano, Japan
18. Kyorin University, Tokyo, Japan
19. Kochi University, Kochi, Japan
20. Gunma University Graduate School of Medicine, Gunma, Japan
21. Kobe University, Hyogo, Japan
22. University of Fukui, Fukui, Japan
23. Kanazawa University, Kanazawa, Ishikawa, Japan
24. Osaka City General Hospital, Osaka, Japan
25. Niigata University, Niigata, Japan
26. Sado General Hospital, Niigata, Japan
27. Hiroshima University, Hiroshima, Japan
28. Wakayama Medical University, Wakayama, Japan
29. Sapporo Medical University, Hokkaido, Japan
30. Osaka-Minami Medical Center, Osaka, Japan
31. Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
32. University of Tsukuba, Tsukuba, Ibaraki, Japan
33. Osaka University Graduate School, Osaka, Japan
34. Chiba University, Chiba, Japan