antibiograms on the 796 coagulase-negative isolates revealed 63.2 % resistant to penicillin , 22.6 % to methicillin , 34.8 % to cephradine , 27.5 % to gentamicin , and 14.4 % to erythromycin ;
C0030842
penicillin
C0025643
methicillin