1. Department of Internal Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon 51353, Republic of Korea
2. Division of Infectious Diseases, Department of Internal Medicine, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu 41404, Republic of Korea
3. Division of Infectious Diseases, Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
4. Division of Infectious Diseases, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea
5. Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Busan 50612, Republic of Korea
6. Department of Internal Medicine, Dong-A University College of Medicine, Busan 49201, Republic of Korea
7. Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
8. Division of Infectious Diseases, Department of Internal Medicine, Inje University College of Medicine, Busan 47392, Republic of Korea
9. Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, Jeju National University, Jeju 63241, Republic of Korea
10. Department of Internal Medicine, Hanyang University College of Medicine, Seoul 04763, Republic of Korea
11. Division of Infectious Diseases, Department of Internal Medicine, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul 02447, Republic of Korea
12. Department of Internal Medicine, Yeungnam University Medical Center, Daegu 42415, Republic of Korea
13. Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Republic of Korea