antimicrobial activity mic of aspc was compared with that of piperacillin ( pipc ) , ampicillin ( abpc ) and carbenicillin ( cbpc ) for clinical isolates of s. aureus ( 24 strains ) , s. pyogenes ( 22 strains ) , h. influenzae ( 18 strains ) , e. coli ( 21 strains ) and k. pneumoniae ( 23 strains ) .
C0031955
piperacillin
C0002680
ampicillin