1 Department of Surgery, Health Services Management and Policy, Wexner Medical Center and James Comprehensive Cancer Center, The Urban Meyer III and Shelley Meyer Chair for Cancer Research, Oncology, The Ohio State University, Columbus, OH, USA.
2 Department of Surgery, University of Verona, Verona, Italy.
3 Department of Hepato-pancreato-biliary and Liver Transplant Surgery, Cleveland Clinic Foundation, Digestive Diseases and Surgery Institute, Cleveland, OH, USA.
4 Department of Surgery, Curry Cabral Hospital, Lisbon, Portugal.
5 Department of Surgery, School of Medicine, The University of Sydney, Sydney, Australia.
6 Division of Surgical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA.
7 Department of Surgery, Keio University, Tokyo, Japan.
8 School of Medicine, Yokohama City University, Yokohama, Japan.
9 Department of Surgery, Health Services Management and Policy, Wexner Medical Center and James Comprehensive Cancer Center, The Urban Meyer III and Shelley Meyer Chair for Cancer Research, Oncology, The Ohio State University, Columbus, OH, USA. Tim.Pawlik@osumc.edu.