1. Department of Emergency Medicine, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
2. Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
3. Italian Society of Prehospital Emergency Medicine (SIS 118), 74121 Taranto, Italy
4. School of Medicine, Catholic University of the Sacred Heart, 00168 Rome, Italy
5. Institute of Sciences in Emergency Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
6. Department of Emergency Medicine, School of Medicine, Wayne State University, Detroit, MI 48201, USA
7. Emergency Department, Humanitas University, Via Rita Levi Montalcini 4, 20089 Milan, Italy
8. Emergency Room and Internal Medicine, Istituti Clinici di Pavia e Vigevano, Gruppo San Donato, 27029 Milan, Italy
9. Department of Emergency Medicine, Fondazione Policlinico San Matteo, 27100 Pavia, Italy