1. Department of General Surgery, The Second Hospital of Hebei Medical University, No.215 He Ping Road, Shijiazhuang, Hebei Province 050000, China
2. Physical Examination Center, The Second Hospital of Hebei Medical University, No.215 He Ping Road, Shijiazhuang, Hebei Province 050000, China
3. Department of Interventional Radiology, The Fourth Hospital of Hebei Medical University, No.12 Jiankang Road, Shijiazhuang, Hebei Province 050011, China