[1] Albany Med Coll, Dept Emergency Med, 43 New Scotland Ave, Albany, NY 12208 USA
[2] Univ Arizona, Dept Emergency Med, Tucson, AZ USA
[3] SUNY Buffalo, Dept Emergency Med, Jacobs Sch Med, Buffalo, NY USA
[4] SUNY Buffalo, Dept Orthopaed, Jacobs Sch Med, Buffalo, NY USA
[5] Univ Vermont, Dept Emergency Med, Lamer Coll Med, Burlington, VT USA
[6] Univ Colorado, Dept Family Med, Longs Peak Family & Sports Med, Longmont, CO USA
[7] Stanford Univ, Sch Med, Dept Orthopaed Surg, Stanford, CA 94305 USA
[8] Univ Florida, Coll Med Jacksonville, Jacksonville, FL USA
[9] West Virginia Univ, Dept Emergency Med, Morgantown, WV 26506 USA
[10] Univ Maryland, Sch Med, Dept Orthopaed, Baltimore, MD 21201 USA
[11] Univ Maryland, Sch Med, Dept Emergency Med, Baltimore, MD 21201 USA
[12] Mt Sinai Beth Israel, Dept Emergency Med, New York, NY USA
[13] MedStar Hlth Georgetown Univ, Dept Emergency Med, Washington, DC USA
[14] Georgetown Univ, Sch Med, Dept Emergency Med, Washington, DC USA
[15] Brown Univ, Alpert Med Sch, Dept Emergency Med, Providence, RI 02912 USA
[16] Drexel Univ, Coll Med, Dept Emergency Med, Pittsburgh, PA USA
[17] Aventura Hosp & Med Ctr, Dept Emergency Med, Aventura, FL USA
[18] Columbia Univ, Med Ctr, Dept Orthoped, New York, NY USA
[19] Columbia Univ, Med Ctr, Dept Emergency Med, New York, NY USA
[20] Univ Alabama Birmingham, Dept Orthoped, Birmingham, AL USA
[21] Loyola Univ Hosp, Dept Emergency Med, Maywood, IL USA