1. Department of Medical Oncology; Jilin Provincial Cancer Hospital; Changchun China
2. Department of Internal Medical Oncology; Harbin Medical University Cancer Hospital; Harbin China
3. Department of Thoracic Oncology; Beijing Cancer Hospital; Beijing China
4. Department of Medical Oncology; The First Hospital of China Medical University; Shenyang China
5. Department of Lung Cancer; Affiliated Hospital of Academy of Military Medical Sciences; Beijing China
6. Department of Respiratory Medicine; The First Hospital of Jilin University; Changchun China
7. Department of Oncology; Beijing Chest Hospital; Beijing China
8. Department of Thoracic Surgery; China-Japan Union Hospital of Jilin University; Changchun China
9. Department of Oncology; The First Affiliated Hospital of Dalian Medical University; Dalian China
10. Department of Oncology; Shengjing Hospital of China Medical University; Shenyang China
11. Department of Cancer Center; The First Affiliated Hospital of Liaoning Medical University; Jinzhou China
12. Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital; Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing; China
13. Department of Medical Oncology; The Second Hospital of Dalian Medical University; Dalian China
14. Department of Oncology; Anshan Cancer Hospital; Anshan China
15. Department of Respiratory and Critical Care Medicine; The Second of Hospital of Jilin University; Changchun China
16. Department of Oncology; The General Hospital of Shenyang Military; Shenyang China
17. Department of Respiratory Medicine; Yanbian University Hospital; Yanbian China
18. Department of Medical Oncology; Liaoning Cancer Hospital; Shenyang China
19. Department of Oncology; Shenyang Chest Hospital; Shenyang China
20. Department of Medical Oncology; Dalian Municipal Central Hospital; Dalian China
21. Department of Thoracic; Liaoning Cancer Hospital; Shenyang China
22. Department of Oncology; Daqing Oilfield General Hospital; Daqing China
23. Medical Department; The Second Affiliated Hospital of Harbin Medical University; Harbin China
24. Department of Oncology; Siping Cancer Hospital; Siping China
25. Department of Oncology; Jilin Municipal Cancer Hospital; Jilin China
26. Department of Medical Oncology; Third People's Hospital of Dalian; Dalian China
27. Department of Thoracic Surgery; Peking University People's Hospital; Beijing China
28. Department of Oncology; The First Affiliated Hospital of Harbin Medical University; Harbin China
29. Department of Medical Oncology; Jilin Center Hospital; Jilin China