the in vitro activity of pd 127,391 , a dihalogenated quinolone , was compared with those of ofloxacin , ciprofloxacin , nalidixic acid , gentamicin , and cefuroxime against 525 recent isolates and well-characterized antimicrobial agent-resistant strains .
C0008809
ciprofloxacin
C1136254
antimicrobial