title: Proceedings: Role of Ca++ and Na+ in producing tachycardia.
mesh_terms: D000818:Animals; D002118:Calcium / Q000502:physiology*; D002413:Cations, Divalent; D002414:Cations, Monovalent; D006329:Heart Conduction System / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects*; D066298:In Vitro Techniques; D011817:Rabbits; D012964:Sodium / Q000502:physiology*
chemical_list: D002413:Cations, Divalent; D002414:Cations, Monovalent; D012964:Sodium; D002118:Calcium