1. West China School of MedicineWest China Hospital, Sichuan University Chengdu China
2. Department of Intensive Care UnitHospital of the University of Electronic Science and Technology of China, Sichuan Provincial People's Hospital Chengdu China
3. Department of Gastrointestinal SurgeryHospital of the University of Electronic Science and Technology of China, Sichuan Provincial People's Hospital Chengdu China