Affiliation: | 1. Department of Surgery, Seoul National University Bundang Hospital, Seongnam‐si, Gyeonggi‐do, Korea;2. Thyroid and Endocrine Surgery Section, Department of Surgery, Gachon University Gil Medical Center, Incheon, Republic of Korea;3. Department of Preventive Medicine, Seoul National University College of Medicine, Jongno‐gu, Seoul, Korea;4. Department of Surgery, Seoul National University Hospital and College of Medicine, Jongno‐gu, Seoul, Korea;5. Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea;6. Department of Surgery, Seoul National University Hospital Boramae Medical Center, Seoul, Korea |