1. UCO Medicina Clinica, ASUGI, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
2. Department of Medicine, Padua University Hospital, University of Padua, 35122 Padova, Italy
3. Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy