1. Department of Breast Surgery, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, P.R. China
2. Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, P.R. China
3. Liaoning Provincial Key Laboratory of Oral Diseases, School of Stomatology, China Medical University, Shenyang 110001, Liaoning Province, P.R. China