the in-vitro antibacterial activity of nalidixic acid and the 4-quinolones , ciprofloxacin , norfloxacin , enoxacin , ofloxacin , pefloxacin , a-56619 , a-56620 and ci-934 was assessed by determination of mics .
C0027353
nalidixic acid
C0358919
4-quinolones