title: The effect of calcium, practolol, atropine and phenoxybenzamine on the rat atrial action potential at threshold and supra-threshold stimulation.
mesh_terms: D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D001285:Atropine / Q000494:pharmacology*; D002118:Calcium / Q000494:pharmacology*; D004347:Drug Interactions; D004558:Electric Stimulation; D005260:Female; D006321:Heart / Q000187:drug effects; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D010643:Phenoxybenzamine / Q000494:pharmacology*; D011217:Practolol / Q000494:pharmacology*; D051381:Rats
chemical_list: D010643:Phenoxybenzamine; D001285:Atropine; D011217:Practolol; D002118:Calcium