1. Department Pathology Erasmus MC Rotterdam The Netherlands
2. Service de Pathologie Hôpital Bichat AP‐HP et Université de Paris Paris France
3. Section of Anatomic Pathology Department of Life Sciences and Public Health Università Cattolica del Sacro Cuore Roma Italia
4. Unit of Anatomic Pathology Department of Woman and Child Health and Public Health Fondazione Policlinico Universitario A. Gemelli IRCCS Roma Italia
5. Roma European Neuroendocrine Tumor Society (ENETS) Center of Excellence Roma Italia
6. Division of gastrointestinal medical oncology and neuroendocrine tumors European Institute of Oncology (IEO) IRCCS Milan Italy
7. CA Gastroenterologie Zentralklinik Bad Berka GmbH Bad Berka Germany
8. Department of Surgery Cancer Centre Amsterdam Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
9. Department of Pathology Consultation Center for Pancreatic and Endocrine Tumors, TU Munich Munich Germany
10. Institute of Pathology University of Bern Bern Switzerland