1. Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Korea.
2. Department of Internal Medicine, Center for Thyroid Cancer, National Cancer Center, Korea.
3. Department of Internal Medicine, Chonnam National University Medical School, Korea.
4. Department of Otorhinolaryngology, College of Medicine, Yonsei University, Korea.
5. Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea.
6. Department of Internal Medicine, College of Medicine, Pusan National University, Korea.
7. Department of Radiology, Human Medical Imaging and Intervention Center, Korea.
8. Department of Surgery, College of Medicine, Yonsei University, Korea.
9. Department of Pathology, Seoul National University College of Medicine, Korea.
10. Department of Surgery, College of Medicine, Chungbuk National University, Korea.
11. Department of Nuclear Medicine, Inje University College of Medicine, Korea.
12. Department of Otorhinolaryngology, College of Medicine, Korea University, Korea.
13. Department of Radiology, University of Ulsan College of Medicine, Korea.
14. Department of Otorhinolaryngology, College of Medicine, Pusan National University, Korea.
15. Department of Surgery, University of Ulsan College of Medicine, Korea.
16. Department of Otorhinolaryngology, Center for Thyroid Cancer, National Cancer Center, Korea.
17. Department of Nuclear Medicine, Seoul National University College of Medicine, Korea.
18. Department of Internal Medicine, University of Ulsan College of Medicine, Korea.
19. Department of Otorhinolaryngology, Hallym University College of Medicine, Korea.