1. The Fifth Department of General Surgery, The Third Affiliated Hospital of Jinzhou Medical University , No. 2, Section 5, Heping Road , Jinzhou , Liaoning 121000 , China
2. The Second Department of General Surgery, Dalian Fifth People’s Hospital , Dalian , Liaoning 116081 , China
3. The Fifth Department of General Surgery, The Third Affiliated Hospital of Jinzhou Medical University , Jinzhou , Liaoning 121000 , China