1. Department of Infection Control and Prevention, Kokura Memorial Hospital
2. Vascular Access-Associated Infections Surveillance Research Group
3. Division of Clinical Laboratory and Infection Control, Yamagata University Hospital
4. Department of Nursing, Tokatsu-Clinic Hospital
5. Department of Infection Control and Prevention, Saitama Medical Center
6. Division of Infection Control, Tokyo-Kita Medical Center
7. Department of Infection Control and Prevention, Seichokai Fuchu Hospital
8. Department of Nursing, Maebashi Red Cross Hospital
9. Department of Infection Control and Prevention, Fukui-Ken Saiseikai Hospital
10. Infection Control and Prevention Room, Hokko Memorial Hospital
11. Department of Medical Safety Administration, Tachikawa Sogo Hospital
12. Division of Infection Control, Naha City Hospital
13. Department of Medical Safety and Environmental Administration, Chutoen Central Medical Center
14. Pressent address: Department of Medical Safety Administration, Nagoya Midori Municipal Hospital
15. Division of Infection Control, Hikone Municipal Hospital
16. Infection Control and Prevention Room, Omihachiman Community Medical Center
17. Department of Infection Control and Prevention, Akita Kousei Medical Center
18. Division of Infection Control, Nakamura Hospital
19. Pressent address: Department of Infection Control and Prevention, Ogikubo Hospital
20. Division of Infection Control, Shimonoseki Medical Center
21. Department of Nursing, Nara Prefectural Gojo Hospital
22. Pressent address: Department of Nursing, Minami-Nara Central Medical Center
23. Department of Nursing, Kobe Rosai Hospital
24. Department of Nursing, Musashimurayama Hospital
25. Department of Nursing, Kariya Toyota General Hospital
26. Department of Nursing, Takasago Municipal Hospital