8Clinical and Laboratory Standards Institute ( CLSI ) .Performance standards for antimicrobial ausceptibility testing[S].Twenty-Second Informational Supplement, 2012 : M100-S22.
9Okeefe -McCarthy S, Santiago C, Lan G. Ventilator- associated pneu- moniabundled strategies : An evidence - based practice [ J ]. Worldvi EBN ,2008,5 (4) : 193 - 204.