1. Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
2. Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
3. Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
4. National and Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
5. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi'an, P.R. China