1. Department of Surgical, Medical, Odontoiatric and Morphological Sciences; University of Modena and Reggio Emilia; Modena; Italy
2. Department of Internal Medicine and Medical Specialties (DiMI); University of Genoa; Genoa; Italy
3. Department of Clinical and Diagnostic Medicine and Public Health, Division of Clinical Pathology; University Hospital of Modena and Reggio Emilia; Modena; Italy
4. Oral Medicine Unit, Department of Odontostomatological and Maxillofacial Sciences, School of Medicine and Surgery; Federico II University of Naples; Naples; Italy