Weber David J, Rutala William A, Sickbert-Bennett Emily E
Department of Hospital Epidemiology, University of North Carolina Health Care System, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7030, USA.
Antimicrob Agents Chemother. 2007 Dec;51(12):4217-24. doi: 10.1128/AAC.00138-07. Epub 2007 Oct 1.