title: On the asymmetry of frog retinal rod outer segment disk membranes.
mesh_terms: D000818:Animals; D001699:Biometry; D002462:Cell Membrane / Q000648:ultrastructure; D005614:Freeze Fracturing; D008433:Mathematics; D008854:Microscopy, Electron; D010786:Photoreceptor Cells / Q000648:ultrastructure*; D011894:Rana pipiens