the in vitro activities of cefoperazone , cefotaxime , ceftriaxone , ceftazidime , azlocillin , mezlocillin , piperacillin , ticarcillin/clavulanate , aztreonam , imipenem , and ciprofloxacin were concurrently determined against over 1,000 isolates of gram-negative bacilli from clinical specimens of patients at the cleveland clinic .
C0007554
cefotaxime
C0007561
ceftriaxone