title: Effects of extracellular Ca2+ concentration and papaverine on the visual cell function in the isolated frog retina.
mesh_terms: D000222:Adaptation, Physiological / Q000187:drug effects; D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D003624:Darkness; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D010208:Papaverine / Q000494:pharmacology*; D011892:Rana catesbeiana / Q000502:physiology; D012160:Retina / Q000187:drug effects* / Q000502:physiology; D014785:Vision, Ocular / Q000187:drug effects*
chemical_list: D010208:Papaverine; D002118:Calcium