Marshall, A T Freeze-substitution as a preparation technique for biological X-ray microanalysis. [electronic resource] - Scanning electron microscopy 1980 - 395-408 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0586-5581 Subjects--Topical Terms: AcroleinAnimalsElectron Probe Microanalysis--methodsEtherFreezingFrozen SectionsMathematicsSpecimen Handling--methods