1. State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China;
2. Department of Respiratory Medicine, Xinqiao Hospital, Third Military Medical University, Chongqing, China;
3. Department of Respiratory Medicine, Hai Nan Provincial People’s Hospital, Haikou, Hainan, China;
4. Department of Respiratory Medicine, General Hospital of Shenyang Military Command, Shenyang, Liaoning, China;
5. Respiratory Department, Hangzhou First People’s Hospital, Hangzhou, Zhejiang, China;
6. Respiratory Department, Wuxi People’s Hospital, Wuxi, Jiangsu, China;
7. Department of Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China;
8. Department of Respiratory Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China;
9. GSK, Shanghai, China;
10. GSK, Beijing, China;
11. GSK, King of Prussia, PA, USA;
12. Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA