1. Anesthesiology and Intensive Care Department “Pugliese Ciaccio” Hospital, 88100 Catanzaro (CZ), Italy
2. Anesthesiology and Intensive Care Department Civil Hospital, 89044 Locri (RC), Italy
3. Anesthesiology and Intensive Care Department “San Giovanni di Dio” Hospital, 88900 Crotone (KR), Italy