1. Neuroscience Intensive Care, Department of Anesthesia and Intensive Care, Ospedale Policlinico IRCCS, Milano University, Milano, Italy.
2. Department of Anesthesia and Intensive Care, Ospedale S. Raffaele, Milano, Italy.
3. Department of Anesthesia and Intensive Care, Ospedale S. Gerardo, Monza, Italy