1. Department of Respiratory and Critical Care Medicine The Second Affiliated Hospital of Chongqing Medical University Chongqing China
2. Department of Intensive Care Medicine Chongqing Public Health Medical Center Chongqing China
3. Health Management Center The Second Affiliated Hospital of Chongqing Medical University Chongqing China
4. Department of Respiratory and Infectious Medicine Qianjiang Central Hospital of Chongqing Chongqing China