1. Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
2. Department of Internal Medicine, National Cancer Center, Goyang, Korea
3. Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
4. Department of Otolaryngology-Head and Neck Surgery, Chungnam National University Hospital, Daejeon, Korea
5. Department of Surgery, Ewha Womans University Mokdong Hospital, Seoul, Korea
6. Department of Nuclear Medicine, Pusan National University Hospital, Busan, Korea
7. Department of Internal Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
8. Department of Internal Medicine, Asan Medical Center, Seoul, Korea
9. Department of Surgery, Asan Medical Center, Seoul, Korea
10. Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
11. Department of Internal Medicine, Chonnam National University Hwasun Hospital, Hwasun, Korea
12. Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
13. Department of Internal Medicine, Hanyang University Seoul Hospital, Seoul, Korea
14. Department of Pediatrics, Kyungpook National University Chilgok Hospital, Daegu, Korea
15. Department of Nuclear Medicine, National Cancer Center, Goyang, Korea
16. Department of Otolaryngology-Head and Neck Surgery, Eunpyeong St. Mary’s Hospital, Seoul, Korea
17. Department of Nuclear Medicine, CHA Bundang Medical Center, Seongnam, Korea
18. Department of Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, Korea
19. Department of Nuclear Medicine, Chungnam National University Sejong Hospital, Sejong, Korea
20. Department of Internal Medicine, Severance Hospital, Seoul, Korea
21. Department of Pathology, Gangnam Severance Hospital, Seoul, Korea
22. Department of Internal Medicine, Chung-Ang University Hospital, Seoul, Korea
23. Department of Nucelar Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
24. Department of Otolaryngology-Head and Neck Surgery, Dankook University Hospital, Cheonan, Korea
25. Department of Otolaryngology-Head and Neck Surgery, Chungnam National University Sejong Hospital, Sejong, Korea
26. Department of Otolaryngology-Head and Neck Surgery, National Cancer Center, Goyang, Korea
27. Department of Radiology, Yeouido St. Mary’s Hospital, Seoul, Korea
28. Department of Nuclear Medicine, Kyungpook National University Chilgok Hospital, Daegu, Korea
29. Department of Pathology, Konkuk University Meical Center, Seoul, Korea
30. Department of Internal Medicine, Gachon Gil Hospital, Incheon, Korea
31. Department of Pediatrics, Seoul National University Children’s Hospital, Seoul, Korea
32. Department of Radiology, Seoul National University Hospital, Seoul, Korea
33. Department of Pediatrics, Inje University Ilsan Paik Hospital, Goyang, Korea
34. Department of Surgery, Yongin Severance Hospital, Yongin, Korea
35. Department of Internal Medicine, Seoul St. Mary’s Hospital, Seoul, Korea
36. Department of Otolaryngology-Head and Neck Surgery, Gangnam Severance Hospital, Seoul, Korea
37. Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
38. Department of Nuclear Medicine, Chosun University Hospital, Gwangju, Korea
39. Department of Pathology, Seoul St. Mary’s Hospital, Seoul, Korea
40. Department of Internal Medicine, Incheon St. Mary’s Hospital, Incheon, Korea
41. Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
42. Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Korea
43. Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
44. Department of Surgery, Severance Hospital, Seoul, Korea
45. Department of Radiology, Gangneung Asan Hospital, Gangneung, Korea