title: Effects of Ba2+ upon the dark-adapted intensity-response curve of toad rods.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001464:Barium / Q000494:pharmacology*; D002024:Bufo marinus / Q000502:physiology*; D003623:Dark Adaptation; D066298:In Vitro Techniques; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000187:drug effects / Q000502:physiology*
chemical_list: D001464:Barium