1. Department of Medicine; Section of Internal Medicine; University of Verona-AOUI-Verona; Verona Italy
2. Department of Medical Science “M. Aresu”; Section of Anesthesia; Intensive Care and Pain Therapy; University of Cagliari; Cagliari Italy
3. Department of Surgical Science, Anesthesiology; Intensive Care and Pain therapy Center; University of Verona-AOUI-Verona; Verona Italy
4. Department of Emergency; Institute of Anesthesia, Resuscitation and Pain Medicine; Catholic University of Sacred Heart; Rome Italy