title: A study of the histamine H2-receptors in heart muscle and coronary vessels.
mesh_terms: D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D003331:Coronary Vessels / Q000378:metabolism*; D004305:Dose-Response Relationship, Drug; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D006339:Heart Rate / Q000187:drug effects; D006632:Histamine / Q000494:pharmacology*; D066298:In Vitro Techniques; D009206:Myocardium / Q000378:metabolism*; D010477:Perfusion; D011955:Receptors, Drug / Q000187:drug effects*
chemical_list: D011955:Receptors, Drug; D006632:Histamine