title: THE PRESERVATION OF BLOOD BY RAPID FREEZING FOR SUBSEQUENT DETERMINATION OF BLOOD AMMONIA.
mesh_terms: D000641:Ammonia; D001774:Blood Chemical Analysis; D001793:Blood Preservation; D003080:Cold Temperature; D004367:Dry Ice; D000431:Ethanol; D005615:Freezing; D006801:Humans; D009584:Nitrogen; D011309:Preservation, Biological; D012106:Research
chemical_list: D004367:Dry Ice; D000431:Ethanol; D000641:Ammonia; D009584:Nitrogen
keywords: ALCOHOL, ETHYL; AMMONIA; BLOOD CHEMICAL ANALYSIS; BLOOD PRESERVATION; COLD; DRY ICE; EXPERIMENTAL LAB STUDY; NITROGEN