[1] Univ Catania, Sch Med, Dept Biomed & Biotechnol Sci, Catania, Italy
[2] Fdn Ist G Giglio, Anesthesiol & Pain Dept, Cefalu, Italy
[3] Univ Pavia, Emergency Med Fellowship Programme, Pavia, Italy
[4] Imperial Coll Healthcare NHS Trust, St Marys Hosp, Emergency Dept, London, England
[5] AO Osped Riuniti Villa Sofia Cervello, Unita Operat Complessa Pneumol, Palermo, Italy
[6] San Marino State Hosp, Cailungo, San Marino
[7] UO Elettrofisiol, Clin Humanitas Gavazzeni, Bergamo, Italy
[8] Univ Palermo, Sect Anaesthesia Analgesia Intens Care & Emergenc, Policlin Paolo Giaccone, Dept Surg Oncol & Oral Sci DiChirOnS, Palermo, Italy
[9] Polyclin Maine, Laval, Pays De La Loir, France
[10] Univ Palermo, Dept Biomed Neurosci & Adv Diagnost BIND, Sect Radiol, Palermo, Italy
[11] Asl TO5, Osped Santa Croce Moncalieri, Struttura Complessa Neurol, Moncalieri, TO, Italy