title: [Changes in the ionic permeability of myocardial membrane fibers during the genesis of automatic activity].
mesh_terms: D000200:Action Potentials; D000818:Animals; D001001:Anura; D002463:Cell Membrane Permeability; D006321:Heart / Q000502:physiology*; D009206:Myocardium / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism*; D012964:Sodium / Q000378:metabolism*
chemical_list: D012964:Sodium; D011188:Potassium
vernacular_title: Izmeneniia ionnoĭ pronitsaemosti membrany miokardial'nykh volokon pri vozniknovenii avtomaticheskoĭ aktivnosti.