1. Department of Cardiology, People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, China
2. Institute of Respiratory Diseases, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, China
3. Department of Respiratory Diseases, People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, China
4. Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
5. Department of Respiratory Diseases, People’s Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Nanning, Guangxi 530021, China