Determination of the height of some intramembranous particles.
D000818:Animals; D002462:Cell Membrane / Q000648:ultrastructure*; D002540:Cerebral Cortex / Q000648:ultrastructure*; D005613:Freeze Etching; D008854:Microscopy, Electron; D051381:Rats; D011919:Rats, Inbred Strains