State Key Laboratory of Respiratory Diseases;
Department of Internal Medicine;
The Guangzhou Chest Hospital;
Guangzhou;
China;
Respiratory Department;
The First People Hospital of Yunnan Province;
Kunming;
China;
Department of Internal Medicine;
The Third Affiliated Hospital of Sun Yat-sen University;
Guangzhou;
China;
State Key Laboratory of Respiratory Diseases;
Guangzhou Institutes of Biomedicine and Health;
Chinese Academy of Sciences;
Guangzhou;
China;