[1] Johns Hopkins Univ, Sch Med, Dept Anesthesiol & Crit Care Med, Qual & Patient Safety Initiat,Qual & Safety Res G, Baltimore, MD 21205 USA
[2] Johns Hopkins Sch Nursing, Hlth Syst & Outcomes, Baltimore, MD USA
[3] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Hlth Policy & Management, Baltimore, MD USA
[4] Qual & Safety Res Grp, Baltimore, MD USA
[5] Johns Hopkins Univ, Sch Med, Dept Med, Div Infect Dis, Baltimore, MD 21205 USA
[6] Johns Hopkins Univ, Sch Med, Dept Med, Antibiot Management Program, Baltimore, MD 21205 USA
[7] Johns Hopkins Univ Hosp, Baltimore, MD 21287 USA
[8] Johns Hopkins Univ Hosp, Hosp Epidemiol & Infect Control, Baltimore, MD 21287 USA
[9] Johns Hopkins Univ, Sch Med, Dept Anesthesiol & Crit Care Med, Qual & Safety Res Grp, Baltimore, MD 21205 USA
[10] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA