1 Section of Anesthesia Analgesia, Intensive Care and Emergency, Department of Biopathology and Medical Biotechnologies (DIBIMED), Policlinico Paolo Giaccone, University of Palermo, Via del vespro 129, 90127, Palermo, Italy. cortegiania@gmail.com.
2 General Intensive Care Unit, Policlinico Paolo Giaccone, University of Palermo, Palermo, Italy.