1 Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, University Hospital of Modena, Modena, Italy.
2 Department of Specialized Medicine, Gastroenterology Unit, University Hospital of Modena, Modena, Italy.
3 Center for Rare Lung Disease, Department of Specialized Medicine, Respiratory Disease Unit, University Hospital of Modena, Modena, Italy.
4 Pathology Unit, Morgagni-Pierantoni Hospital, Forlì, Italy.
5 Department of Surgery, University Hospital of Modena, Modena, Italy.
6 Pathology Unit, University Hospital of Modena, Modena, Italy. Electronic address: [email protected].