1. Department of Respiratory and Critical Care Medicine Renmin Hospital of Wuhan University Wuhan Hubei China
2. Department of Rehabilitation Medicine Affiliated Hospital of Inner Mongolia Medical University Hohhot Inner Mongolia China
3. Department of Pulmonary and Critical Care Medicine Inner Mongolia Autonomous Region People's Hospital Hohhot Inner Mongolia China
4. State Key Laboratory of Respiratory Disease Guangzhou Institute of Respiratory Health The First Affiliated Hospital of Guangzhou Medical University Guangzhou Guangdong China