title: Three-way observations of the identical cell structures within the same sections by light microscopy, HVEM and SEM.
mesh_terms: D000311:Adrenal Glands / Q000648:ultrastructure*; D000818:Animals; D002838:Chromaffin System / Q000648:ultrastructure; D007515:Islets of Langerhans / Q000648:ultrastructure*; D008853:Microscopy; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D012911:Snakes