1. Department of Internal Medicine; Yonsei University College of Medicine; Seoul South Korea
2. Department of Internal Medicine; Chonbuk National University Medical School and Hospital; Jeonju South Korea
3. Department of Internal Medicine; Seoul National University Bundang Hospital; Seongnam South Korea
4. Department of Internal Medicine; Kangbuk Samsung Hospital; Seoul South Korea
5. Department of Internal Medicine; Seoul Samsung Hospital; Seoul South Korea
6. Department of Internal Medicine; Seoul Asan Hospital; Seoul South Korea
7. Department of Internal Medicine; University of Ulsan College of Medicine; Ulsan South Korea
8. Department of Internal Medicine; Dankook University College of Medicine; Cheonan South Korea
9. Department of Internal Medicine; Gachon College of Medicine; Incheon South Korea
10. Department of Internal Medicine; Soonchunhyang University College of Medicine; Bucheon South Korea
11. Department of Internal Medicine; Inje University Ilsan Paik Hospital; Goyang South Korea
12. Department of Internal Medicine; Inje University Busan Paik Hospital; Busan South Korea
13. Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon South Korea
14. Department of Internal Medicine; Korea University Ansan Hospital; Ansan South Korea
15. Department of Internal Medicine; Yeungnam University College of Medicine; Daegu South Korea
16. Department of Internal Medicine; Yonsei University Wonju College of Medicine; Wonju South Korea
17. Department of Internal Medicine; Kyungpook National University College of Medicine; Daegu South Korea
18. Department of Internal Medicine; Korea University Guro Hospital; Seoul South Korea
19. Department of Internal Medicine; Keimyung University School of Medicine; Daegu South Korea
20. Department of Internal Medicine; Chonnam National University Medical School; Gwangju South Korea
21. Department of Internal Medicine; Wonkwang University College of Medicine; Iksan South Korea
22. Department of Internal Medicine; Pusan National University School of Medicine; Busan South Korea
23. Department of Internal Medicine; Hallym University College of Medicine; Chuncheon South Korea
24. Department of Internal Medicine; Jeju National University College of Medicine; Jeju South Korea
25. Department of Internal Medicine; Chosun University School of Medicine; Gwangju South Korea
26. Department of Internal Medicine; Chungbuk National University College of Medicine; Cheongju South Korea
27. Department of Internal Medicine; Kangwon National University School of Medicine; Chuncheon South Korea
28. Department of Preventive Medicine; Eulji University School of Medicine; Daejeon South Korea