the minimum inhibitory concentrations ( mic ) of penicillin g , ampicillin , mezlocillin , azlocillin , cephalothin and cefoxitin were determined for 47 strains of haemophilus influenzae , 68 strains of neisseria meningitidis and 45 strains of streptococcus pneumoniae .
C0002680
ampicillin
C0025893
mezlocillin