title: Slow inward current and contraction in frog atrial muscle at various extracellular concentrations of Na and Ca ions.
mesh_terms: D000818:Animals; D001001:Anura; D016275:Atrial Function; D002118:Calcium / Q000494:pharmacology; D004594:Electrophysiology; D006325:Heart Atria / Q000187:drug effects; D008094:Lithium / Q000494:pharmacology; D008564:Membrane Potentials; D009200:Myocardial Contraction / Q000187:drug effects*; D011894:Rana pipiens; D012964:Sodium / Q000494:pharmacology
chemical_list: D008094:Lithium; D012964:Sodium; D002118:Calcium