title: Force-frequency relationships in left auricles from rat hearts.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000200:Action Potentials; D000241:Adenosine / Q000494:pharmacology; D000818:Animals; D016275:Atrial Function; D002118:Calcium / Q000502:physiology; D005711:Gallopamil / Q000494:pharmacology; D009200:Myocardial Contraction / Q000187:drug effects; D009206:Myocardium; D011188:Potassium / Q000502:physiology; D051381:Rats
chemical_list: D005711:Gallopamil; D000241:Adenosine; D000109:Acetylcholine; D011188:Potassium; D002118:Calcium