title: Letter: On the possible role of cAMP in receptor dark adaptation.
mesh_terms: D000255:Adenosine Triphosphate / Q000502:physiology; D000818:Animals; D001001:Anura; D002463:Cell Membrane Permeability; D000242:Cyclic AMP / Q000494:pharmacology / Q000502:physiology*; D003623:Dark Adaptation; D066298:In Vitro Techniques; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000187:drug effects / Q000502:physiology*; D012160:Retina / Q000187:drug effects; D012964:Sodium / Q000378:metabolism
chemical_list: D000255:Adenosine Triphosphate; D012964:Sodium; D000242:Cyclic AMP