1 Digestive Endoscopy Unit, Division of Gastroenterology, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, 20089 Rozzano (Milano), Italy.
2 Pancreatic Surgery Unit, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, 20089 Rozzano (Milano), Italy.
3 Humanitas University, Department of Biomedical Sciences, Pieve Emanuele (MI) Italy.