1. Research Institute for Clinical Oncology, Saitama Cancer Center; Saitama Japan
2. Department of General Surgery, Graduate School of Medicine; Chiba University; Chiba Japan
3. Divisions of Breast Oncology; Saitama Cancer Center; Saitama Japan
4. Divisions of Breast Surgery; Saitama Cancer Center; Ina Saitama Japan
5. Department of Pathology; Saitama Cancer Center; Saitama Japan
6. Division of Tumor Biology, Department of Pathology; Kyoto University School of Medicine; Kyoto Japan