1. Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
2. Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
3. Department of Internal Medicine, National Cancer Center, Goyang, Korea.
4. Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
5. Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
6. Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
7. Department of Otorhinolaryngology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
8. Department of Radiology, National Cancer Center, Goyang, Korea.
9. Department of Otorhinolaryngology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
10. Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
11. Department of Otorhinolaryngology, National Cancer Center, Goyang, Korea.
12. Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.
13. Department of Biomedical Science, Seoul National University College of Medicine, Seoul, Korea.
14. Cancer Research Institute, Seoul National University, Seoul, Korea.
15. Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
16. Director General, Korea National Institute of Health, Cheongju, Korea.