1. Department of Respiration, The Sencond Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
2. Department of Respiratory and Critical Care, Affiliated Hospital of Yunnan University, Kunming, Yunnan, China
3. Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, the Sencond Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
4. Department of Respiration, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
5. Department of Respiration, Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China