title: PRESERVATION OF BLOOD AMMONIA BY RAPID FREEZING--A METHOD FOR DELAYED DETERMINATIONS.
mesh_terms: D000641:Ammonia; D001774:Blood Chemical Analysis; D001793:Blood Preservation; D003080:Cold Temperature; D005615:Freezing; D006801:Humans; D012106:Research; D013223:Statistics as Topic
chemical_list: D000641:Ammonia
keywords: AMMONIA; BLOOD CHEMICAL ANALYSIS; BLOOD PRESERVATION; COLD; EXPERIMENTAL LAB STUDY; FREEZING; STATISTICS