[1] Accreditat Council Grad Med Educ, Dept Res Educ, Chicago, IL USA
[2] Univ Rochester, Dept Emergency Med, Sch Med & Dent, Rochester, NY 14627 USA
[3] Providence St Vincent Hlth Ctr, Emergency Dept, Portland, OR USA
[4] Sanpete Valley Hosp, Emergency Dept, Intermt Hlth Care, Mt Pleasant, UT USA
[5] Univ Connecticut, Dept Emergency Med & Internal Med, Sch Med, Farmington, CT 06032 USA
[6] New Britain Gen Hosp, Dept Emergency Med, New Britain, CT USA
[7] Univ N Carolina, Sch Med, Off Educ Dev, Dept Emergency Med, Chapel Hill, NC 27515 USA
[8] MetroHlth Med Ctr, Dept Emergency Med, Cleveland, OH USA
[9] NYU, Dept Med, Sch Med, New York, NY USA
[10] Arizona Hlth Sci Ctr, Dept Emergency Med, Tucson, AZ USA
[11] Stanford Univ, Dept Emergency Med, Ctr Med, Stanford, CA 94305 USA
[12] Univ Florida, Coll Med, Dept Emergency Med, Jacksonville, FL USA