Sleep and cardiac arrhythmias.
D000328:Adult; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000209:etiology*; D004562:Electrocardiography; D006339:Heart Rate; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D010275:Parasympathetic Nervous System / Q000502:physiology; D012890:Sleep / Q000502:physiology*; D013398:Sudden Infant Death / Q000209:etiology*; D013564:Sympathetic Nervous System / Q000502:physiology; D014851:Wakefulness / Q000502:physiology