Vargová, M Influence of heptachlor on the effectiveness of aminopyrine and morphine in mice. [electronic resource] - Toxicology and applied pharmacology Jul 1969 - 225-8 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0041-008X Standard No.: 10.1016/0041-008x(69)90151-3 doi Subjects--Topical Terms: Aminopyrine--antagonists & inhibitorsAnimalsInsecticides--pharmacologyMaleMiceMorphine--antagonists & inhibitorsTime Factors