1. Division of Infectious Disease, Department of Internal Medicine, Kangnam Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea.
2. Division of Infectious Diseases, Department of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea.
3. Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
4. Division of Infectious Diseases, Department of Internal Medicine, Yonsei University Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea.
5. Department of Laboratory Medicine, Hallym University Kangnam Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea.
6. Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.
7. Infection Control Office, Korea University Guro Hospital, Seoul, Korea.
8. Infection Control Office, Inje University Sanggye Paik Hospital, Seoul, Korea.
9. Korean Association of Infection Control Nurses, Seoul, Korea.
10. Infection Control Office, Seoul National University Bundang Hospital, Seongnam, Korea.
11. Infection Control Office, Korea University Ansan Hospital, Ansan, Korea.
12. Infection Control Office, Chung-Ang University Healthcare System, Seoul, Korea.
13. Infection Control Office, Gangnam Severance Hospital, Yonsei University, Seoul, Korea.
14. Infection Control Office, Soonchunhyang University Seoul Hospital, Seoul, Korea.
15. Infection Control Office, Ewha Womans University Mokdong Hospital, Seoul, Korea.
16. School of Nursing, College of Medicine, Soonchunhyang University, Cheonan, Korea.