the in vitro activity of gentamicin , tobramycin , sisomicin , netilmicin , amikacin , kanamycin and streptomycin was tested simultaneously by the agar dilution method against 584 clinical isolates of gram-negative bacilli that were resistant to gentamicin and/or tobramycin .
C0002499
amikacin
C0022487
kanamycin