1. The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510650, P.R. China
2. Department of General Surgery‑Breast Center, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong 510650, P.R. China
3. Department of Radiotherapy, Hainan General Hospital, Haikou, Hainan 570311, P.R. China