title: Several methods of quick freezing in an ultracold freezer.
authors.affiliation: Department of Microbiology, Southern Illinois University, Carbondale 62901.
authors.forename: T W
authors.initials: TW
authors.lastname: Christianson
mesh_terms: D000433:1-Propanol; D000535:Aluminum; D015925:Cryopreservation / Q000379:methods*; D004367:Dry Ice; D000431:Ethanol; D009584:Nitrogen
chemical_list: D004367:Dry Ice; D000431:Ethanol; D000433:1-Propanol; D000535:Aluminum; D009584:Nitrogen