1. Internal Cardiovascular and Emergency Medicine–Stroke Unit, S. Maria della Misericordia Hospital, University of Perugia, Perugia 06156, Italy
2. Internal Cardiovascular and Emergency Medicine–Stroke Unit, S. Maria della Misericordia Hospital, University of Perugia, Perugia, Italy
3. Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
4. Emergency Medicine Department, Pisa University Hospital, Italy
5. Infectious Disease Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
6. Anaesthesia and Intensive Care Unit, Ospedali Galliera, Genova, Italy
7. Emergency Medicine Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy