Nicoletta Nandi a, b, Giorgio Alberto Croci a, c, Francesca Gaia Rossi d, Lilla Cro e, Maurizio Vecchi a, b, Luca Elli a, b, ⁎ 
a Department of Pathophysiology and Transplantation, University of Milan, Milan 20122, Italy
b 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
c Division of Pathology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, Milan 20122, Italy
d Division of Hemaotology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, Milan 20122, Italy
e Servizio di Citofluorimetria, Laboratorio Centrale, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy