1. Department of General Surgery, Shonan Kamakura General Hospital, Kamakura, Kanagawa 247‑8533, Japan
2. Department of Medical Oncology and Hematology, Kobe University Graduate School of Medicine, Kobe, Hyogo 650‑0017, Japan
3. Department of Medical Oncology, Yao Tokushukai General Hospital, Yao, Osaka 581‑0011, Japan
4. Department of Breast Surgery, Ogaki Tokushukai Hospital, Ogaki, Gifu 503‑0015, Japan
5. Tokushukai Information System, Inc., Osaka 530‑0001, Japan
6. Mirai Iryo Research Center Inc., Tokyo 102‑0074, Japan
7. deCult Co., Ltd., Hatsukaichi, Hiroshima 739‑0413, Japan