1. The Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, 1095 Jiefang Ave., Wuhan 430030, China.
2. Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Guilin Medical University, 212 Renmin Road, Guilin 541000, China.
3. Department of Respiratory Medicine, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Lu, Shanghai 200011, China.