1. Department of Thoracic and Cardiovascular Surgery/Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
2. Department of Thoracic Surgery, Hainan General Hospital, Hainan Hospital, Affiliated to Hainan Medical College, Haikou, P.R. China
3. Department of Breast Surgery, Hainan General Hospital, Hainan Hospital, Affiliated to Hainan Medical College, Haikou, P.R. China