Differences in chronotropic and dromotropic responses of the SA and AV nodes to adenosine and acetylcholine.
D000109:Acetylcholine / Q000494:pharmacology*; D000241:Adenosine / Q000494:pharmacology*; D000818:Animals; D004285:Dogs; D004562:Electrocardiography; D006329:Heart Conduction System / Q000187:drug effects*; D012849:Sinoatrial Node / Q000187:drug effects
D000241:Adenosine; D000109:Acetylcholine