one hundred sixteen clinical isolates of enterobacter sp. , escherichia coli , klebsiella sp. , proteus mirabilis , staphylococcus aureus and s. epidermidis were tested against cefoperazone , cefoxitin , cefamandole and piperacillin by disc-agar diffusion .
C0007552
cefoperazone
C0007541
cefamandole