title: Ultrastructure of the pineal gland in blinded rats.
mesh_terms: D000818:Animals; D001766:Blindness / Q000473:pathology*; D002452:Cell Count; D002455:Cell Division; D003624:Darkness; D008297:Male; D008854:Microscopy, Electron; D010870:Pineal Gland / Q000648:ultrastructure*; D051381:Rats