Department of Hepatobiliary, Pancreatic and Splenic Surgery, The Affiliated Hospital of Inner Mongolia Medical University, #1, Tongdao North Street, Huhhot, 010051, PR China.

Department of Hepatobiliary, Pancreatic and Splenic Surgery, The Affiliated Hospital of Inner Mongolia Medical University, #1, Tongdao North Street, Huhhot, 010051, PR China.

Medical Simulation Center, Inner Mongolia Medical University, Huhhot, 010059, PR China.

Department of Hepatobiliary, Pancreatic and Splenic Surgery, The Affiliated Hospital of Inner Mongolia Medical University, #1, Tongdao North Street, Huhhot, 010051, PR China.

Department of Hepatobiliary, Pancreatic and Splenic Surgery, The Affiliated Hospital of Inner Mongolia Medical University, #1, Tongdao North Street, Huhhot, 010051, PR China.

Inner Mongolia Key Laboratory of Molecular Pathology, Inner Mongolia Medical University, #5, Xin Hua Street, Huhhot, 010059, PR China.

Inner Mongolia Key Laboratory of Molecular Pathology, Inner Mongolia Medical University, #5, Xin Hua Street, Huhhot, 010059, PR China. xiaorui79@hotmail.com.

Department of Hepatobiliary, Pancreatic and Splenic Surgery, The Affiliated Hospital of Inner Mongolia Medical University, #1, Tongdao North Street, Huhhot, 010051, PR China. renjj.ok@163.com.