1. Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China;
2. Department of Respiratory and Critical Care Medicine, People’s Hospital of Mojiang Hani Autonomous County, Yunnan, China
3. Department of Respiratory and Critical Care Medicine, Wuxi Branch of Ruijin Hospital, Shanghai Jiao Tong University, Wuxi, China; and