[1] San Luigi Gonzaga Univ Hosp, Dept Emergency Med, I-10043 Turin, Italy
[2] King Saud Univ Hlth Sci, Natl & Gulf Ctr Evidence Based Hlth Practice, Riyadh, Saudi Arabia
[3] Northside Hosp Forsyth, Dept Emergency Med, Atlanta, GA USA
[4] Hop Ambroise Pare, Serv Reanimat Med, Boulogne, France
[5] Foothills Med Ctr, Calgary, AB, Canada
[6] Cornell Univ, Weill Med Coll, Dept Med, Clin Epidemiol Unit,Div Gen Internal Med, New York, NY 10021 USA
[7] CNR, Inst Clin Physiol, Pisa, Italy
[8] Massachusetts Gen Hosp, Dept Emergency Med, Div Emergency Ultrasound, Boston, MA 02114 USA
[9] IRCCS Fdn Policlin San Matteo, Dept Anesthesia & Intens Care Pavia 1, Pavia, Italy
[10] Univ Penn, Med Ctr, Dept Emergency Med, Div Emergency Ultrasonog, Philadelphia, PA 19104 USA
[11] Mt Sinai Sch Med, Dept Emergency Med, New York, NY USA
[12] Mt Sinai Sch Med, Dept Pediat, New York, NY USA
[13] Valle Serchio Gen Hosp, Emergency Med Unit, Lucca, Italy
[14] Latisana Hosp, Dept Med, Udine, Italy
[15] Grp Hosp Paris St Joseph, Dept Anesthesia & Crit Care, Surg Intens Care Unit, Paris, France
[16] Univ Jena, Med Univ Clin 1, Dept Pneumol & Allergol, Jena, Germany
[17] Ist Sci San Raffaele, IRCCS, Div Noninvas Cardiol, I-20132 Milan, Italy
[18] Univ Paris 06, Pitie Salpetriere Hosp, Dept Anesthesiol, Multidisciplinary Intens Care Unit, Paris 6, France
[19] Wyle NASA Lyndon B Johnson Space Ctr Bioastronaut, Houston, TX USA
[20] UC Davis Med Ctr, Dept Emergency Med, Sacramento, CA USA
[21] Univ S Carolina, Sch Med, Columbia, SC USA
[22] Univ Hosp Saarland, Dept Anaesthesiol Intens Care & Pain Therapy, Homburg, Germany
[23] Frankfurt Inst Emergency Med & Simulat Training F, Homburg, Germany
[24] Diakonie Klinikum Jung Stilling, Siegen, Germany
[25] AREU EMS Publ Reg Co, Niguarda Ca Granda Hosp, Milan, Italy
[26] Osped Niguarda Ca Granda, Intens Care Unit G Bozza, Milan, Italy
[27] Univ Hosp Avicenne, Bobigny, France