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. Author manuscript; available in PMC: 2015 Apr 17.
Published in final edited form as: Rapid Commun Mass Spectrom. 2008 Aug;22(16):2403–2412. doi: 10.1002/rcm.3624

Figure 5.

Figure 5

LC-MRM/MS chromatograms of RBC folates from a homozygous MTHFR 677TT genotype that was a type IV phenotype (5-MTHF <55%; THF >20%; 5,10-MTHF >5%).