[1] Johns Hopkins Univ, Sch Med, Dept Internal Med, Baltimore, MD USA
[2] Johns Hopkins Univ, Sch Med, Dept Med, Baltimore, MD 21205 USA
[3] Johns Hopkins Med, Armstrong Inst Patient Safety & Qual, Baltimore, MD USA
[4] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[5] Johns Hopkins Univ Hosp, Baltimore, MD 21287 USA
[6] Johns Hopkins Univ, Sch Med, Dept Emergency Med, Baltimore, MD USA
[7] Johns Hopkins Univ Hosp, Johns Hopkins Hlth Syst, Baltimore, MD USA
[8] Johns Hopkins Univ, Sch Med, Dept Surg, Div Acute Care Surg, Baltimore, MD USA
[9] Johns Hopkins Univ, Sch Med, Dept Anesthesiol & Crit Care Med, Div Acute Care Surg, Baltimore, MD USA
[10] Johns Hopkins Univ, Sch Med, Dept Anesthesiol & Crit Care Med, Baltimore, MD USA
[11] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Hlth Policy & Management, Baltimore, MD USA