1. Department of Thoracic Surgery, Chinese PLA General Hospital, Beijing, China
2. Department of Thoracic Surgery, National Cancer Centre/National Clinical Research Centre for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
3. Department of Thoracic Surgery, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
4. Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
5. Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
6. Department of Thoracic Surgery, Jiangsu Cancer Hospital, Nanjing, China