1 Department of Anesthesia and Intensive Care, Cattinara Hospital, University of Trieste, Strada di Fiume 447, 34149, Trieste, Italy. berlotg@virgilio.it.
2 Department of Anesthesia and Intensive Care, Cattinara Hospital, University of Trieste, Strada di Fiume 447, 34149, Trieste, Italy.
3 Department of Pathology, University of Trieste, Trieste, Italy.