[1] Univ Michigan, Dept Internal Med, Div Geriatr & Palliat Med, Ann Arbor, MI 48109 USA
[2] Vet Affairs Ann Arbor Healthcare Syst, Geriatr Res Educ & Clin Ctr, Ann Arbor, MI 48105 USA
[3] Duke Univ, Dept Pediat, Div Infect Dis, Sch Med, Durham, NC 27706 USA
[4] Washington Univ, Sch Med, St Louis, MO USA
[5] Wake Forest Sch Med, Winston Salem, NC 27101 USA
[6] Queen Mary Hosp, 6Dept Microbiol, Hong Kong, Peoples R China
[7] Queen Mary Hosp, Hong Kong West Cluster, Infect Control Team, Hong Kong, Peoples R China
[8] Childrens Hosp Philadelphia, Div Crit Care Med, Philadelphia, PA 19104 USA
[9] Univ Maryland, Sch Pharm, Baltimore, MD 21201 USA
[10] Univ Maryland, Sch Med, Baltimore, MD 21201 USA
[11] Univ Iowa, Carver Coll Med, Iowa City, IA USA
[12] Louis Stokes Cleveland Vet Affairs Med Ctr, Infect Dis Sect, Cleveland, OH USA
[13] Case Western Reserve Univ, Sch Med, Cleveland, OH USA
[14] Univ Arizona, Coll Publ Hlth, Dept Epidemiol & Biostat, Tucson, AZ USA
[15] Vet Affairs Eastern Colorado Healthcare Syst, Aurora, CO USA
[16] Univ Colorado, Colorado Sch Publ Hlth, Aurora, CO USA
[17] Univ Calif Irvine, Sch Med, Div Infect Dis, Irvine, CA 92717 USA
[18] UC Irvine Hlth, Epidemiol & Infect Prevent, Irvine, CA USA
[19] Johns Hopkins Univ, Sch Med, Div Infect Dis, Baltimore, MD 21205 USA
[20] Johns Hopkins Univ, Dept Emergency Med, Baltimore, MD USA
[21] Vet Affairs Ann Arbor Ctr Clin Management Res, Ann Arbor, MI USA
[22] Univ Michigan, Dept Internal Med, Ann Arbor, MI 48109 USA
[23] Univ Michigan, Dept Internal Med, Div Infect Dis, Ann Arbor, MI 48109 USA
[24] Iowa City Vet Affairs Hlth Care Syst, Iowa City, IA USA
[25] Washington State Univ, Paul G Allen Sch Global Anim Hlth, Pullman, WA 99164 USA
[26] Brigham Young Univ, Provo, UT 84602 USA
[27] Johns Hopkins Univ, Div Pediat Infect Dis, Sch Med, Baltimore, MD USA
[28] Childrens Mercy Kansas City, Kansas City, MO USA
[29] Univ Missouri, Sch Med, Kansas City, MO 64108 USA
[30] Vet Affairs Maryland Healthcare Syst, Baltimore, MD USA
[31] Infect Control Results, Wingate, NC USA
[32] Vet Affairs Portland Hlth Care Syst, Portland, OR USA
[33] Oregon Hlth & Sci Univ, Portland, OR 97201 USA
[34] Vet Affairs Ann Arbor Healthcare Syst, Ann Arbor, MI USA
[35] Univ N Carolina, Dept Infect Prevent, Med Ctr, Chapel Hill, NC 27515 USA
[36] Michael E DeBakey VA Med Ctr, Houston, TX USA
[37] Baylor Coll Med, H Ben Taub Dept Phys Med & Rehabil, Houston, TX 77030 USA
[38] Vet Affairs Pittsburgh Healthcare Syst, Ctr Hlth Equ Res & Promot, Pittsburgh, PA USA
[39] Univ Pittsburgh, Div Gen Internal Med, Sch Med, Pittsburgh, PA USA
[40] Vanderbilt Univ, Sch Med, Nashville, TN 37212 USA
[41] Univ Utah, Sch Med, Dept Internal Med, Div Gen Internal Med, Salt Lake City, UT USA
[42] Univ N Carolina, Chapel Hill, NC 27515 USA
[43] St Louis Univ, Sch Med, Dept Med, Div Infect Dis Allergy & Immunol, St Louis, MO 63104 USA
[44] Univ Pittsburgh, Sch Med, Pittsburgh, PA USA
[45] Univ Pittsburgh, Grad Sch Publ Hlth, Infect Dis & Microbiol, Pittsburgh, PA USA
[46] Univ Penn, Infect Dis Div, Philadelphia, PA 19104 USA
[47] Duke Univ, Duke Ctr Antimicrobial Stewardship & Infect Preve, Sch Med, Durham, NC 27708 USA