title: Barium suppresses slow PIII in perfused bullfrog retina.
mesh_terms: D000818:Animals; D001001:Anura; D001464:Barium / Q000494:pharmacology*; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D010775:Photic Stimulation; D011892:Rana catesbeiana; D012160:Retina / Q000166:cytology / Q000187:drug effects / Q000502:physiology*
chemical_list: D001464:Barium