title: A role for calcium in the migration of retinal screening pigment in the frog.
mesh_terms: D000221:Adaptation, Ocular; D000818:Animals; D002118:Calcium / Q000494:pharmacology / Q000502:physiology*; D003624:Darkness; D004848:Epithelium / Q000648:ultrastructure; D008027:Light; D011894:Rana pipiens; D012160:Retina / Q000187:drug effects / Q000378:metabolism* / Q000648:ultrastructure; D012163:Retinal Detachment / Q000378:metabolism; D012168:Retinal Pigments / Q000378:metabolism*
chemical_list: D012168:Retinal Pigments; D002118:Calcium