[1] Duke Univ, Med Ctr, Duke Ctr Antimicrobial Stewardship & Infect Preve, Durham, NC USA
[2] Univ North Carolina Hlth Care, Dept Hosp Epidemiol, Chapel Hill, NC USA
[3] Durham Vet Affairs Med Ctr, Durham, NC USA
[4] High Point Reg Hosp, High Point, NC USA
[5] Alamance Reg Med Ctr, Burlington, NC USA
[6] Carolinas Med Ctr, Charlotte, NC 28203 USA
[7] Rex Healthcare, Raleigh, NC USA
[8] Chesapeake Reg Med Ctr, Chesapeake, VA USA
[9] Duke Univ, Med Ctr, Dept Biostat & Bioinformat, Durham, NC USA