1. Department of Plastic Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
2. Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
3. Department of Orthopaedic Surgery, Sheba Medical Center, Tel HaShomer, Israel
4. Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
5. Department of Orthopaedic Surgery, Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China