1. Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto
2. Kyowa Hakko Kirin Co., Ltd., Tokyo
3. Department of Clinical Biostatistics, Graduate School of Medicine, Kyoto University, Kyoto
4. Department of Clinical Oncology, School of Medicine, International University of Health and Welfare, Tochigi
5. Department of Breast Surgery, Kyoto University Hospital
6. Department of Internal Medicine, Faculty of Medicine, Fukuoka University, Fukuoka, Japan