1. Intensive Care Unit, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
2. Department of Joint Surgery, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
3. Department of Emergency, Sun Yat‑Sen Memorial Hospital, Sun Yat‑Sen University, Guangzhou, Guangdong 510120, P.R. China
4. Emergency of ICU, Huiyang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China