1. Department of Surgery, Chong Hua Hospital-Cebu, Cebu City, Philippines.
2. Department of Pathology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.
3. Division of Breast and Endocrine Surgery, Department of Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.
4. Department of Surgery, Korea Cancer Center Hospital, Korea Institute of Radiological & Medical Sciences, Seoul, Korea.
5. Department of Surgery, Dong-A University Hospital, Dong-A University College of Medicine, Busan, Korea.
6. Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
7. Department of Surgery, Chonnam National University Medical School and Chonnam National University Hwasun Hospital, Hwasun, Korea.
8. Department of Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
9. Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.