1. Unit of Internal Medicine, Department of Internal Medicine, Endocrinology, Metabolism and Geriatrics; University of Modena and Reggio Emilia; Modena; Italy
2. Department of Pathology; Azienda Ospedaliero-Universitaria Policlinico di Modena, University of Modena and Reggio Emilia; Modena; Italy
3. Institute of Cellular Medicine; Newcastle University Medical School; Newcastle upon Tyne; UK