when brain levels of theophylline were determined at a dose ( 32 mg/kg ip ) which gave maximal behavioral separation of the two strains , no significant differences were found between them ( swr levels 12.5 +/- 1.9 , cba levels 14.3 +/- 1.7 micrograms/g wet weight brain ) .
C0006104
brain
C0004927
behavioral