| Institution: | 1. Department of General Surgery, Dalian Municipal Friendship Hospital, No. 8 Sanba Square, Zhongshan District, Dalian 116001, China;2. Department of Laparoscopic Surgery, First Affiliated Hospital of Dalian Medical University, No. 193 Lianhe Street, Shahekou District, Dalian 116001, China;3. Department of Pathology and Pathophysiology, Dalian Medical University, No. 9 Lvshunnan Road, Lvshunkou District, Dalian 116044, China;4. Department of Oncology, Zhongshan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian 116001, China;5. Department of Emergency, Zhongshan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian 116001, China |
