[Effect of urea on the determination of free amino acid in the urine by microbiological assay].
D001681:Biological Assay; D066298:In Vitro Techniques; D007778:Lactobacillus / Q000187:drug effects; D010649:Phenylalanine / Q000652:urine*; D014508:Urea / Q000494:pharmacology*
D010649:Phenylalanine; D014508:Urea