1. Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College , Bengbu, Anhui , China
2. Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical College , Bengbu , China
3. Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College , Bengbu , China
4. Anhui Key Laboratory of Tissue Transplantation , Bengbu Medical College, Bengbu , China
5. Department of Colorectal Surgery, The Third Affiliated Hospital of Nanjing University of Chinese Medicine , Nanjing , China
6. Department of General Surgery, Southeast University Zhongda Hospital , Nanjing , China