between november 1981 and october 1984 , 48 of 3,458 clinical isolates of streptococcus faecalis at the university of michigan hospital showed high-level ( greater than 2,000 micrograms/ml ) resistance to gentamicin , as well as to all other clinically available aminoglycosides .
C0017436
gentamicin
C0002556
aminoglycosides