1. Department of Anesthesia and Intensive Care Unit, SS Filippo and Nicola Academic Hospital of Avezzano, L’Aquila, Italy
2. Department of Anesthesia and Intensive Care Unit, San Salvatore Academic Hospital of L’Aquila, L’Aquila, Italy
3. Department of Life, Health and Environmental Sciences, University of L’Aquila, L’Aquila, Italy.