Drupal-Bibcite0<style face="normal" font="default" size="100%">Preventing hospital-acquired infections: a national survey of practices reported by U.S. hospitals in 2005 and 2009.</style><style face="normal" font="default" size="100%">Preventing hospital-acquired infections: a national survey of practices reported by U.S. hospitals in 2005 and 2009.</style>