1. Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
2. Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
3. Department of Surgery, The Ohio State University Wexner Medical Center, Columbus
4. Department of Surgery, Fundeni Clinical Institute, Bucharest, Romania
5. Department of Surgery, Curry Cabral Hospital, Lisbon, Portugal
6. Department of Surgery, Ospedale San Raffaele, Milan, Italy
7. Department of Surgery, Medical College of Wisconsin, Milwaukee
8. Department of Surgery, Emory University School of Medicine, Atlanta, Georgia
9. Department of Surgery, Royal Prince Alfred Hospital, University of Sydney, Sydney, Australia
10. Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, New York
11. Department of Surgery, University of Virginia, Charlottesville
12. Department of Surgery, Eastern Hepatobiliary Surgery Hospital, Shanghai, China
13. Department of Surgery, Stanford University, Stanford, California
14. Department of Surgery, West Virginia University Health Sciences Center, Morgantown
15. Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York