title: Mechanism of calcium induced fibrillation in the toad's heart.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D002025:Bufonidae; D002118:Calcium / Q000494:pharmacology*; D003864:Depression, Chemical; D006329:Heart Conduction System / Q000187:drug effects / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D011188:Potassium / Q000494:pharmacology; D012621:Seasons; D012964:Sodium / Q000494:pharmacology; D013268:Stimulation, Chemical
chemical_list: D012964:Sodium; D000109:Acetylcholine; D011188:Potassium; D002118:Calcium