1. Department of Thoracic Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaiyin, Huaian, Jiangsu 223001, P.R. China
2. Department of Medical Oncology, Xuzhou Central Hospital, Quanshan, Xuzhou 221000, P.R. China
3. Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu 210000, P.R. China
4. Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China