title: Late potentiating effect of low-K ringer solution on the contractility of the bullfrog ventricle.
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology; D066298:In Vitro Techniques; D008564:Membrane Potentials; D008839:Microelectrodes; D009119:Muscle Contraction / Q000187:drug effects; D009206:Myocardium / Q000378:metabolism; D011188:Potassium / Q000494:pharmacology*; D011892:Rana catesbeiana; D012964:Sodium / Q000378:metabolism*; D013997:Time Factors; D016276:Ventricular Function
chemical_list: D012964:Sodium; D011188:Potassium; D002118:Calcium