title: Effects of calcium on the intensity-response curve of toad rods.
mesh_terms: D000222:Adaptation, Physiological / Q000187:drug effects; D000818:Animals; D002024:Bufo marinus; D002118:Calcium / Q000494:pharmacology*; D003623:Dark Adaptation; D004307:Dose-Response Relationship, Radiation; D004553:Electric Conductivity / Q000187:drug effects; D066298:In Vitro Techniques; D008027:Light; D008564:Membrane Potentials / Q000187:drug effects; D010786:Photoreceptor Cells / Q000187:drug effects* / Q000528:radiation effects; D014785:Vision, Ocular / Q000187:drug effects
chemical_list: D002118:Calcium