title: Influence of calcium ions on the action of substances which affect cardiac function.
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects* / Q000502:physiology; D006801:Humans; D009200:Myocardial Contraction / Q000187:drug effects; D010042:Ouabain / Q000494:pharmacology; D010424:Pentobarbital / Q000494:pharmacology; D011802:Quinidine / Q000494:pharmacology; D012964:Sodium / Q000378:metabolism
chemical_list: D010042:Ouabain; D012964:Sodium; D010424:Pentobarbital; D011802:Quinidine; D002118:Calcium