title: Absence of chronotropic effects of dibutyryl cyclic adenosine 3',5'-monophosphate on the dog S-A node.
mesh_terms: D000225:Adenine / Q000494:pharmacology; D000818:Animals; D000242:Cyclic AMP / Q000494:pharmacology*; D004285:Dogs; D006339:Heart Rate / Q000187:drug effects*; D010477:Perfusion; D012849:Sinoatrial Node / Q000187:drug effects*
chemical_list: D000242:Cyclic AMP; D000225:Adenine