1 Department of Medicine, University of Udine, via Colugna n° 50, 33100, Udine, Italy. luigi.vetrugno@uniud.it.
2 Anesthesia and Intensive Care Medicine Department, ASUFC University-Hospital of Central Friuli, ASUFC, P.le S. Maria della Misericordia n° 15, 33100, Udine, Italy. luigi.vetrugno@uniud.it.
3 Department of Medicine, University of Udine, via Colugna n° 50, 33100, Udine, Italy.
4 Anesthesia and Intensive Care Medicine Department, ASUFC University-Hospital of Central Friuli, ASUFC, P.le S. Maria della Misericordia n° 15, 33100, Udine, Italy.
5 Department of Medicine and Surgery, University of Perugia, Perugia, Italy.