The relation of the autonomic nervous system to cardiac arrhythmias.
D000109:Acetylcholine / Q000494:pharmacology*; D001145:Arrhythmias, Cardiac; D001341:Autonomic Nervous System; D004837:Epinephrine / Q000494:pharmacology*; D006801:Humans
D000109:Acetylcholine; D004837:Epinephrine
ACETYLCHOLINE/pharmacology; EPINEPHRINE/pharmacology