1. Department of Breast Oncology Niigata Cancer Center Hospital Niigata Japan
2. Department of Surgery, Breast Oncology National Hospital Organization Osaka National Hospital Osaka Japan
3. Department of Breast Surgery Yao Municipal Hospital Osaka Japan
4. Breast Surgical Oncology, Breast Oncology Center Cancer Institute Hospital Tokyo Japan
5. Department of Medical Oncology Fukushima Medical University Fukushima Japan
6. Department of Pathology Tohoku University Miyagi Japan
7. Department of Biomedical Statistics and Bioinformatics Kyoto University Graduate School of Medicine Kyoto Japan
8. Breast Oncology Center Cancer Institute Hospital Tokyo Japan
9. Department of Surgery (Breast Surgery), Graduate School of Medicine Kyoto University Kyoto Japan