[1] Temple Univ Hosp & Med Sch, Dept Emergency Med, Philadelphia, PA 19140 USA
[2] Olive View UCLA Med Ctr, Dept Emergency Med, Los Angeles, CA USA
[3] Olive View UCLA Med Ctr, Div Infect Dis, Los Angeles, CA USA
[4] Hosp Univ Penn, Dept Emergency Med, Philadelphia, PA 19104 USA
[5] Emory Sch Med, Dept Emergency Med, Atlanta, GA USA
[6] Mayo Clin, Dept Emergency Med, Rochester, MN USA