the in vitro activity of a new investigational cephalosporin , ro 13-9904 , was compared with those of four cephalosporins ( cephalothin , cefamandole , cefoxitin , and moxalactam ) , five semisynthetic penicillins ( mezlocillin , piperacillin , carbenicillin , ticarcillin , and azlocillin ) , and the aminoglycoside tobramycin .
C0002556
aminoglycoside
C0040341
tobramycin