We tested the hypothesis that nimodipine ( NIMO ) administered at the onset of nitroglycerin ( NTG ) -induced hypotension would preserve long-term associative memory .
O O O O O B-ChemicalEntity O B-ChemicalEntity O O O O O O B-ChemicalEntity O B-ChemicalEntity O O B-DiseaseOrPhenotypicFeature O O O O O O