1. Department of Pathology; St. Luke's International Hospital; Tokyo
2. Department of Pathology; Tohoku University Hospital; Sendai
3. Department of Breast Surgical Oncology; St. Luke's International Hospital; Tokyo
4. Division of Pathology; The Cancer Institute Hospital of Japanese Foundation for Cancer Research; Tokyo
5. Department of Breast Surgical Oncology; Showa University School of Medicine; Tokyo
6. Division of Breast and Endocrine Surgery; Department of Surgery; St. Marianna University School of Medicine Hospital; Kawasaki Japan
7. Department of Radiology; St. Luke's International Hospital; Tokyo
8. St. Luke's Life Science Institute Center for Clinical Epidemiology; Tokyo