1 Department of Pathophysiology and Transplantation, University of Milan, Milan 20122, Italy; Center for Prevention and Diagnosis of Celiac Disease and Division of Gastroenterology and Endoscopy, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, Milan 20122, Italy.
2 Department of Pathophysiology and Transplantation, University of Milan, Milan 20122, Italy; Division of Pathology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, Milan 20122, Italy.
3 Division of Hemaotology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, Milan 20122, Italy.
4 Servizio di Citofluorimetria, Laboratorio Centrale, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
5 Department of Pathophysiology and Transplantation, University of Milan, Milan 20122, Italy; Center for Prevention and Diagnosis of Celiac Disease and Division of Gastroenterology and Endoscopy, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, Milan 20122, Italy. Electronic address: luca.elli@policlinico.mi.it.