Na+ and K+ in outer segments of retinal rods.
D000818:Animals; D001001:Anura; D002417:Cattle; D005110:Extracellular Space / Q000032:analysis; D008854:Microscopy, Electron; D010786:Photoreceptor Cells / Q000032:analysis*; D011188:Potassium / Q000032:analysis* / Q000302:isolation & purification; D012964:Sodium / Q000032:analysis* / Q000302:isolation & purification
D012964:Sodium; D011188:Potassium