1. Division of Breast-Endocrine Surgery, Department of Surgery, Asan Medical Center, Seoul, Korea.
2. Department of Surgery, Seoul National University Hospital, Seoul, Korea.
3. Department of Surgery, Mamms Clinic, Seoul, Korea.
4. Department of Surgery, Chung-Ang University College of Medicine, Seoul, Korea.
5. Department of Surgery, Sun General Hospital, Daejeon, Korea.
6. Department of Radiology, Seoul National University Hospital, Seoul, Korea.
7. Department of Pathology, Seoul National University Hospital, Seoul, Korea.