gentamicin concentrations in serum were comparable in all groups ( mean concentrations ranged from 14.6 to 17.9 micrograms/ml at 60 min and from 5.7 to 7.4 micrograms/ml at 135 min ) , but gentamicin concentrations in csf and brains were significantly higher in animals in the group receiving mannitol in the internal carotid artery .
C0086045
concentrations
C0006104
brains