1. Department of Surgery, Bundang Jesang General Hospital, Seongnam, Korea.
2. Clinical Science, Department of Medicine, The Graduate School of Konkuk University, Seoul, Korea.
3. Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, Korea.
4. Ewha Womans University Mokdong Hospital/Cancer Center for Women, Breast and Thyroid Cancer Center, Seoul, Korea.
5. Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea.
6. Department of Surgery, Konkuk University School of Medicine, Seoul, Korea.
7. Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.