1. Division of Thyroid and Breast Surgical Oncology, Department of Surgery, Hwahong Hospital, Suwon 16630, Republic of Korea
2. Department of Plastic and Reconstructive Surgery, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul 07247, Republic of Korea
3. Department of Surgery, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
4. Division of Breast Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul 03186, Republic of Korea
5. Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam 13620, Republic of Korea
6. Department of Surgery, Jeonbuk National University Medical School, Jeonju-si 54907, Republic of Korea
7. Division of Breast and Endocrine Surgery, Department of Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul 03080, Republic of Korea