1. Department of Internal Medicine, Jeju National University Hospital, Jeju, Korea.
2. Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea.
3. Asia Pacific Foundation for Infectious Diseases (ARFID), Seoul, Korea.
4. Department of Internal Medicine, Daegu Fatima Hospital, Daegu, Korea.
5. Department of Internal Medicine, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
6. Department of Internal Medicine, Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Korea.
7. Department of Internal Medicine, Kangwon National University College of Medicine, Chuncheon, Korea.
8. Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.