title: Electron microscopy of frozen hydrated biological specimens.
mesh_terms: D002374:Catalase / Q000528:radiation effects*; D003460:Crystallization; D005615:Freezing; D008854:Microscopy, Electron; D011487:Protein Conformation; D011830:Radiation Effects; D013048:Specimen Handling
chemical_list: D002374:Catalase