title: The effect of changes in rate and rhythm on supernormal excitability in the isolated Purkinje system of the dog. A possible role in re-entrant arrhythmias.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D004285:Dogs; D004558:Electric Stimulation; D006329:Heart Conduction System / Q000503:physiopathology*; D008564:Membrane Potentials; D008839:Microelectrodes; D011188:Potassium / Q000494:pharmacology; D011690:Purkinje Fibers / Q000187:drug effects / Q000503:physiopathology*
chemical_list: D011188:Potassium