1. Department of Thoracic Surgery, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, China
2. Institute of Oncology, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, China
3. Department of Gastroenterology, The First People’s Hospital of Suqian, Jiangsu Province, China
4. Department of General Surgery, Nanjing Lishui District People’s Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing 211200, China