1. From the Division of General Surgery, University of Washington, Seattle, WA (Park, Yang, Labadie, Sham)
2. Division of Hepatobiliary and Pancreatic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD (Lafaro, He)
3. Department of Surgical Oncology, University Medical Center, Utrecht, The Netherlands (Hagendoorn)
4. Department of Surgery, City of Hope National Medical Center, Duarte, CA (Melstrom, Fong).
5. Department of Surgery, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands (Gerhards, Marsman)
6. Department of Surgery, Amsterdam UMC, University of Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands (Görgec, Pilz da Cunha, Swijnenburg)
7. Department of Surgical Oncology, University of California San Fransisco, San Fransisco, CA (Thornblade)