1. Department of Anesthesia and Critical Care, Bicocca University of Milano, 20126 Milano, Italy
2. Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
3. Departement of Emergency, IRCCS Fondazione Policlinico San Matteo, 27100 Pavia, Italy
4. Department of Emergency Medicine, Gemelli Hospital, Catholic University of Rome, 00168 Rome, Italy
5. Department of Systems Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy
6. Geriatric Medicine Residency Program, University of Rome “Tor Vergata”, 00133 Rome, Italy
7. Department of Anatomical, Histological, Forensic and Orthopedical Sciences, Sapienza University of Rome, Viale Regina Elena 336, 00161 Rome, Italy
8. Department of Surgical Pathology, Medical, Molecular and Critical Area, Institute of Legal Medicine, University of Pisa, 56126 Pisa, Italy
9. Department of Clinical Medicine, Public Health, Life Sciences, and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy
10. Italian Society of Prehospital Emergency Medicine (SIS 118), 74121 Taranto, Italy