title: Ultrastructural demonstration of calcium in retina, retinal pigment epithelium and choroid.
mesh_terms: D000818:Animals; D001001:Anura; D002118:Calcium / Q000032:analysis*; D002829:Choroid / Q000032:analysis / Q000648:ultrastructure*; D004577:Electron Probe Microanalysis; D006651:Histocytochemistry; D010786:Photoreceptor Cells / Q000032:analysis; D010857:Pigment Epithelium of Eye / Q000032:analysis / Q000648:ultrastructure*; D011892:Rana catesbeiana; D011894:Rana pipiens; D012160:Retina / Q000648:ultrastructure*
chemical_list: D002118:Calcium