Affiliation: | 1. Division of Breast and Endocrine, Department of Surgery, College of Medicine, Asan Medical Center, University of Ulsan, Seoul, Korea 2. Department of Preventive Medicine, College of Medicine, Asan Medical Center, University of Ulsan, Seoul, Korea 3. Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea 4. Department of Surgery, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, Korea 5. Department of Surgery, Inha University College of Medicine, Inha University Hospital, Incheon, Korea 6. Konkuk University Medical Center, School of Medicine Konkuk University, Seoul, Korea
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