1. Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
2. Anhui Public Health Clinical Center, Hefei, Anhui, China
3. Department of Breast Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
4. Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China