title: [Action of low-potassium media on the electrical and mechanical activity of isolated rat and guinea pig hearts].
mesh_terms: D000818:Animals; D004560:Electricity; D006168:Guinea Pigs; D006321:Heart / Q000502:physiology*; D007008:Hypokalemia; D011188:Potassium; D011191:Potassium Deficiency; D051381:Rats
chemical_list: D011188:Potassium
keywords: HEART/physiology; POTASSIUM/deficiency