[1] Univ Virginia, Sch Med, Virginia Dept Hlth, Off Emergency Med Serv, Charlottesville, VA 22903 USA
[2] Univ Virginia, Sch Med, Dept Emergency Med, Charlottesville, VA 22903 USA
[3] Baylor Coll Med, Dept Pediat, Houston, TX 77030 USA
[4] Washington Univ, Sch Med, Missouri Dept Hlth & Senior Serv, St Louis, MO USA
[5] Natl Registry Emergency Med Technicians NREMT, Columbus, OH USA
[6] Ohio State Univ, Wexner Med Ctr, Natl Registry Emergency Med Technicians NREMT, Columbus, OH USA
[7] Med Coll Wisconsin, Milwaukee Cty EMS, Milwaukee, WI USA
[8] Univ Calgary, Cumming Sch Med, Calgary, AB, Canada
[9] Alberta Hlth Serv, Calgary, AB, Canada
[10] Falck Ambulance Northern Calif, Petaluma, CA USA
[11] Univ Missouri Healthcare, Trauma Ctr, Columbia, MO USA
[12] ESO, Austin, TX USA
[13] Natl Assoc State EMS Officials NASEMSO, Falls Church, VA USA
[14] Calif Dept Hlth Care Serv, Sacramento, CA USA
[15] Northwest Community Hosp & EMS Syst, Arlington Hts, IL USA
[16] EMSC Family Advocacy Network, Salt Lake City, UT USA
[17] Univ Utah, Sch Med, Salt Lake City, UT USA
[18] Colorado Springs Fire Dept, Colorado Springs, CO USA