test results revealed that 60.5 % of the isolates were resistant to 8 mug of tobramycin per ml , 67.1 % to 8 mug of gentamicin per ml , 86.2 % to 20 mug of kanamycin a per ml , and only 8.6 % to 20 mug of amikacin per ml .
C0022487
kanamycin
C0002499
amikacin