1. Department of Respiratory Diseases, China-Japan Friendship Hospital; Peking University; Beijing China
2. Department of Respiratory Diseases; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
3. Department of Respiratory Diseases; The First People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine; Shanghai China
4. The Second Affiliated Hospital of Zhejiang University School of Medicine; Hangzhou China
5. Department of Respiratory Diseases; General Hospital of Shenyang Military Command; Shenyang China
6. Guangzhou Institute of Respiratory Diseases; Guangzhou China
7. Department of Respiratory Diseases; West China Hospital, Sichuan University; Chengdu China
8. Department of Respiratory Diseases; Xijing Hospital, The Fourth Military Medical University; Xi'an China
9. Department of Respiratory Diseases; Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Wuhan China
10. Department of Respiratory Diseases; Tianjin Chest Hospital; Tianjing China