1. Department of Pathology; Saitama Medical University International Medical Center; 1397-1, Yamane, Hidaka City 350-1298, Saitama, Japan
2. Department of Breast Oncology; Saitama Medical University International Medical Center; 1397-1 Yamane Hidaka City 350-1298, Saitama, Japan
3. Community Health Science Center; Saitama Medical University; 29, Morohongou Moroyama Town, Iruma district 350-0495, Saitama, Japan