Cardiovascular histamine H2 receptors.
D002319:Cardiovascular System / Q000187:drug effects*; D006439:Hemodynamics / Q000187:drug effects; D006635:Histamine H2 Antagonists / Q000494:pharmacology*; D006801:Humans; D011968:Receptors, Histamine / Q000187:drug effects*
D006635:Histamine H2 Antagonists; D011968:Receptors, Histamine