1. Zhejiang University School of Medicine , Hangzhou , Zhejiang Province 310058 PR China ; Department of Rehabilitation Medicine , Lishui People’s Hospital , Lishui , Zhejiang Province, 323000 PR China
2. Zhejiang University School of Medicine , Hangzhou , Zhejiang Province 310058 PR China ; Department of ICU , Run Run Shaw Hospital affiliated to Zhejiang University School of Medicine , Hangzhou , Zhejiang Province 310020 PR China
3. Department of Infectious Diseases , Lishui People’s Hospital , Lishui , Zhejiang Province, 323000 PR China
4. Department of Respiratory and Critical Care , Lishui Second People’s Hospital , Lishui , Zhejiang Province, 323000 PR China
5. Department of Rehabilitation Medicine , Lishui People’s Hospital , Lishui , Zhejiang Province, 323000 PR China
6. Emergency Care Unit, Lishui Central Hospital , Lishui , Zhejiang Province, 323000 PR China