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Sparidans RW, Bosch TM, Jörger M, Schellens JH, Beijnen JH. Liquid chromatography-tandem mass spectrometric assay for the analysis of uracil, 5,6-dihydrouracil and beta-ureidopropionic acid in urine for the measurement of the activities of the pyrimidine catabolic enzymes. J Chromatogr B Analyt Technol Biomed Life Sci. 2006 Jul 24;839(1-2):45–53. doi: 10.1016/j.jchromb.2006.02.016. PMID: 16513432. |