title: Effects of exogenously applied guanosine triphosphate on membrane current and tension of bullfrong atrial muscle.
mesh_terms: D000818:Animals; D001001:Anura; D002118:Calcium / Q000502:physiology; D004594:Electrophysiology / Q000379:methods; D006160:Guanosine Triphosphate / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects*; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D009200:Myocardial Contraction / Q000187:drug effects*; D011892:Rana catesbeiana
chemical_list: D006160:Guanosine Triphosphate; D002118:Calcium