9National Committee for Clinical Laboratory Standards. Performance standards, for antimicrobial susceptibility testing S. 18th ed. Approved standard M2 - A9 [ S ]. Wayne: CLSI,2008.
10Clinical and Laboratory Standards Institute.Performance Standards for Antimicrobial Susceptibility Testing;Nineteenth Informational Supplement.CLSI document M100-S19[S].19th ed.Wayne PA:CLSI,2009.
