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Quantitation of deuterated and non-deuterated phenylalanine and tyrosine in human plasma using the selective ion monitoring method with combined gas chromatography-mass spectrometry. Application to the in vivo measurement of phenylalanine-4-monooxygenase activity.
Zagalak MJ, Curtius HC, Leimbacher W, Redweik U. Zagalak MJ, et al. Among authors: redweik u. J Chromatogr. 1977 Nov 11;142:523-31. doi: 10.1016/s0021-9673(01)92065-5. J Chromatogr. 1977. PMID: 914934
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