[Automatism of cardiac pacemakers and its suppression by high-frequency excitation].
D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001001:Anura; D001285:Atropine / Q000494:pharmacology; D002712:Chlorides / Q000494:pharmacology; D003035:Cobalt / Q000494:pharmacology; D004558:Electric Stimulation; D004594:Electrophysiology; D066298:In Vitro Techniques; D008345:Manganese / Q000494:pharmacology; D010042:Ouabain / Q000494:pharmacology; D011690:Purkinje Fibers / Q000187:drug effects / Q000502:physiology; D012849:Sinoatrial Node / Q000187:drug effects / Q000502:physiology*
D002712:Chlorides; D003035:Cobalt; D008345:Manganese; D010042:Ouabain; D001285:Atropine; D000109:Acetylcholine
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