[Effect of acetylcholine on primary and subsidiary cardiac automaticity].
D000109:Acetylcholine / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D004562:Electrocardiography; D006168:Guinea Pigs; D006329:Heart Conduction System / Q000187:drug effects*; D009388:Neostigmine / Q000494:pharmacology; D012849:Sinoatrial Node / Q000187:drug effects
D009388:Neostigmine; D001285:Atropine; D000109:Acetylcholine
Efecto de la acetilcolina sobre el automatismo cardiaco primario y subsidiario.