The Five Periampullary Cancers, not Just Different Siblings but Different Families: An International Multicenter Cohort Study

Bas A. Uijterwijk, Daniël H. Lemmers, Michele Ghidini, Hanneke Wilmink, Alberto Zaniboni, Roberto Salvia, Giuseppe Fusai, Bas Groot Koerkamp, Sharnice Koek, Poya Ghorbani, Alessandro Zerbi, Gennaro Nappo, Misha Luyer, Brian K. P. Goh, Keith Roberts, Ugo Boggi, Vasileios Mavroeidis, Steven White, Geert Kazemier, Bergþór Björnsson, Mario Serradilla‐Martín, Michael G. House, Adnan Alseidi, Benedetto Ielpo, Michele Mazzola, Nigel B. Jamieson, Ulrich F. Wellner, Zahir Soonawalla, Santiago Sánchez-Cabús, Raffaele Dalla Valle, Patrick Pessaux, Miljana Vladimirov, Tara S. Kent, Chung Ngai Tang, William E. Fisher, Jörg Kleeff, Alessandro Mazzotta, Miguel Ángel Suárez Muñóz, Adam C. Berger, Chad G. Ball, Dimitris Korkolis, Elisa Bannone, Clarissa Ferarri, Marc G. Besselink, Mohammad Abu Hilal, Giuseppe Malleo, Francesco Lancelotti, Ernesto Sparrelid, Niccolò Napoli, Stephan B. Dreyer, Stuart Robinson, Khalid Khalil, Alejandro Ramírez-del Val, Bilal Al‐Sarireh, Ye Xin Koh, Louisa Bolm, Alessandro Zerbi, Coen van Dam, Ricky H. Bhogal, Alejandro Serrablo, Brice Gayet, Laurence Webber, Karin Johansen, Mark Ramaekers, Mario Giuffrida, Alessandro Giani, Fabio Giannone