title: A collaborative study on the determination of free amino acids in blood plasma.
mesh_terms: D000596:Amino Acids / Q000097:blood*; D000641:Ammonia / Q000032:analysis; D000818:Animals; D002417:Cattle / Q000097:blood*; D002852:Chromatography, Ion Exchange / Q000379:methods*; D013654:Taurine / Q000032:analysis; D014508:Urea / Q000032:analysis
chemical_list: D000596:Amino Acids; D013654:Taurine; D000641:Ammonia; D014508:Urea