1. Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2. Department of Pathology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
3. Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
4. Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China