1. Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
2. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
3. Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea.
4. Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Republic of Korea.
5. Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea.
6. Department of Internal Medicine, Daegu Fatima Hospital, Daegu, Republic of Korea.
7. Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea.
8. Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea.
9. Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea.
10. Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea.
11. Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea.
12. Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea.
13. Department of Internal Medicine, Inje University College of Medicine, Busan, Republic of Korea.
14. Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
15. Division of Infectious Diseases, Seoul Metropolitan Government—Seoul National University Boramae Medical Center, Seoul, Republic of Korea.