Sporadic nonfunctional pancreatic neuroendocrine tumors: Risk of lymph node metastases and aggressiveness according to tumor size: A multicenter international study

Julie Périnel, Gennaro Nappo, Alessandro Zerbi, Charlotte M. Heidsma, E.J.M. Nieveen van Dijkum, Ho‐Seong Han, Yoo‐Seok Yoon, Sohei Satoi, İhsan Ekin Demir, Helmut Frieß, Yogesh K. Vashist, Jakob R. Izbicki, Alexandra Müller, Beat Gloor, Marta Sandini, Luca Gianotti, Fabien Subtil, Mustapha Adham