1. Department of Digestive Disease, Weinan Central Hospital From the , Weinan, Shaanxi 714000, China
2. Department of Anesthesiology, Weinan Central Hospital , Weinan, Shaanxi 714000, China
3. Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Clinical Medicine Research Center for Hematologic Disease of Shaanxi Province , Xi’an, Shaanxi 710038, China