1. Department of Plastic and Reconstructive Surgery, Yokohama City University Medical Center, Yokohama, Japan;
2. Department of Breast and Thyroid Surgery, Yokohama City University Medical Center, Yokohama, Japan;
3. Department of Plastic and Reconstructive Surgery, Tokyo Medical University Hospital, Tokyo, Japan;
4. Department of Plastic and Reconstructive Surgery, Kanagawa Children’s Medical Center, Yokohama, Japan;
5. Department of Breast Oncology and Surgery, Tokyo Medical University Hospital, Tokyo, Japan;
6. Department of Plastic and Reconstructive Surgery, Yokohama City University Hospital, Yokohama, Japan