1. Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
2. Department of Internal Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
3. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
4. Gyeongnam Center for Infectious Disease Control and Prevention, Gyeongnam Provincial Government, Changwon, Korea
5. Division of Statistics, Medical Research Collaborating Center, Seongnam, Korea
6. Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
7. Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
8. Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
9. Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
10. Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea
11. Department of Radiology, Seoul National University College of Medicine, Seoul, Korea