title: Gas chromatography-mass spectrometry determination of [15N]ammonia enrichment in blood and urine.
mesh_terms: D000641:Ammonia / Q000097:blood* / Q000652:urine; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D005971:Glutamates; D018698:Glutamic Acid; D006801:Humans; D007553:Isotope Labeling / Q000379:methods; D009587:Nitrogen Isotopes
chemical_list: D005971:Glutamates; D009587:Nitrogen Isotopes; D018698:Glutamic Acid; D000641:Ammonia