[Production of ectopic stimulation].
D000200:Action Potentials; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D001341:Autonomic Nervous System / Q000503:physiopathology; D004285:Dogs; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008564:Membrane Potentials; D011817:Rabbits; D012756:Sheep; D013268:Stimulation, Chemical; D013997:Time Factors