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Hans Vasen, Isaura Ibrahim, Kristin Robbers, Anneke M. van Mil, Thomas Potjer, Bert A. Bonsing, Wilma Bergman, Martin Wasser, and Hans Morreau, Leiden University Medical Center, Leiden; Wouter H. de Vos tot Nederveen Cappel, Isala Clinics, Zwolle, the Netherlands; Carmen Guillen Ponce, Alfredo Carrato, Julie Earl, Evelina Mocci, Enrique Vazquez-Sequeiros, Alfonso Sanjuanbenito, Maria Muñoz-Beltran, and José Montans, Ramón y Cajal University Hospital, Ramón y Cajal Health Research Institute, Madrid, Spain; Emily P. Slater, Elvira Matthäi, Volker Fendrich, and Detlef K. Bartsch, University Hospital Marburg; Christoph Schicker, Martin Steinkamp, and Jens Figiel, Philipps University Marburg, Marburg; Günter Klöppel, Consultation Centre for Pancreatic and Endocrine Tumors, Technical University Munich; Peter Langer, Klinikum Hanau, Hanau, Germany; and Irene Esposito, Innsbruck University Hospital, Innsbruck, Austria.