title: Cryofixation of tissue without cryoprotectants.
mesh_terms: D003451:Cryoprotective Agents; D005613:Freeze Etching / Q000379:methods; D005614:Freeze Fracturing / Q000379:methods*; D008854:Microscopy, Electron / Q000379:methods; D009821:Oils
chemical_list: D003451:Cryoprotective Agents; D009821:Oils