[1] Johns Hopkins Univ, Sch Med, Dept Emergency Med, Baltimore, MD 21287 USA
[2] Johns Hopkins Univ, Sch Med, Dept Surg, Div Acute Care Surg, Baltimore, MD 21287 USA
[3] Johns Hopkins Med, Armstrong Inst Patient Safety & Qual, Baltimore, MD USA
[4] Johns Hopkins Univ, Sch Med, Johns Hopkins Surg Ctr Outcomes Res, Baltimore, MD 21287 USA
[5] Johns Hopkins Univ, Sch Med, Dept Anesthesiol & Crit Care Med, Baltimore, MD 21287 USA
[6] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Hlth Policy & Management, Baltimore, MD USA
[7] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21287 USA
[8] Johns Hopkins Univ Hosp, Dept Nursing, Baltimore, MD 21287 USA
[9] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Biostat, Baltimore, MD USA
[10] Johns Hopkins Univ Hosp, Dept Pharm, Baltimore, MD 21287 USA
[11] Duke Univ, Dept Surg, Durham, NC USA
[12] Johns Hopkins Univ, Sch Med, Dept Med, Div Hematol, Baltimore, MD 21287 USA
[13] Johns Hopkins Univ, Sch Med, Russell H Morgan Dept Radiol & Radiol Sci, Baltimore, MD 21287 USA
[14] Johns Hopkins Univ, Sch Med, Div Hlth Sci Informat, Baltimore, MD 21287 USA