1. The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou, Guangdong, China
2. State Key Laboratory of Respiratory DiseaseGuangzhou, Guangdong, China
3. National Clinical Research Center for Respiratory DiseaseGuangzhou, Guangdong, China
4. Guangzhou Institute of Respiratory DiseaseGuangzhou, Guangdong, China
5. National Center for Respiratory MedicineGuangzhou, Guangdong, China
6. Medical College of Jiaying UniversityMeizhou, China
7. Taishan Hospital of Traditional Chinese MedicineJiangmen, China
8. Guangzhou Institute of TechnologyGuangzhou China
9. The Second Affiliated Hospital of Guangdong Medical UniversityZhanjiang, China