1. Department of Breast Surgery, JA Tokushima Kouseiren Anan Medical Center, Anan City, Japan
2. Department of Breast Surgery, Breastopia Miyazaki Hospital, Miyazaki, Japan
3. Department of Pathology, Breastopia Miyazaki Hospital, Miyazaki, Japan
4. Department of Thoracic, Endocrine Surgery and Oncology, Tokushima Graduated School, Tokushima, Japan