1. Department of Burn and Plastic Surgery, Nanchong Central Hospital, Nanchong, Sichuan 637000, P.R. China
2. General Surgery Department, The People's Hospital of Shunqing District, Nanchong Central Hospital, Nanchong, Sichuan 637000, P.R. China
3. Department of Burn and Plastic Surgery, Nanchong Central Hospital, Nanchong, Sichuan 637000, P.R. China
4. Department of Critical Care Medicine, Nanchong Central Hospital, Nanchong, Sichuan 637000, P.R. China