[6s]-5-methyltetrahydrofolate increases plasma folate more effectively than folic acid in women with the homozygous or wild-type 677C–>T polymorphism of methylenetetrahydrofolate reductase

Prinz-Langenohl R., Bramswig S., Tobolski O., Smulders Y. M., Smith D. E. C., Finglas P. M., Pietrzik K.. (2009)

British Journal of Pharmacology, 158, 2014-2021