1. Department of General Surgery, Shonan Kamakura General Hospital, Kamakura, Kanagawa 247‑8533, Japan
2. Cancer Care Promotion Center, University of Fukui Hospital, Eiheiji, Fukui 910‑1193, 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. deCult Co., Ltd., Hatsukaichi, Hiroshima 739‑0413, Japan
6. Tokushukai Information System Inc., Osaka 530‑0001, Japan
7. Mirai Iryo Research Center Inc., Tokyo 102‑0074, Japan
8. Department of Medical Oncology and Hematology, Kobe University Graduate School of Medicine, Kobe, Hyogo 650‑0017, Japan