1 Anesthesia and Intensive Care, University Hospital of Padua, Padua, Italy.
2 Department of Medicine, University of Padua, Padua, Italy.
3 Anesthesia and Intensive Care, University Hospital of Padua, Padua, Italy; Department of Medicine, University of Padua, Padua, Italy; Department of Cardiac, Thoracic, Vascular Sciences, and Public Health, University of Padova, Padua, Italy.
4 Anesthesia and Intensive Care, University Hospital of Padua, Padua, Italy. Electronic address: nico.sella@hotmail.it.
5 Anesthesia and Intensive Care, University Hospital of Padua, Padua, Italy; Department of Medicine, University of Padua, Padua, Italy.