Response of mammalian cardiac muscle to certain sympathomimetics in presence of morphine.
D000818:Animals; D002415:Cats; D004837:Epinephrine / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects* / Q000502:physiology*; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology*; D009020:Morphine / Q000494:pharmacology*; D010210:Papillary Muscles / Q000187:drug effects*; D014439:Tyramine / Q000494:pharmacology
D009020:Morphine; D007545:Isoproterenol; D014439:Tyramine; D004837:Epinephrine