Human betaine-homocysteine methyltransferase (BHMT) and BHMT2: common gene sequence variation and functional characterization.
Li F, Feng Q, Lee C, Wang S, Pelleymounter LL, Moon I, Eckloff BW, Wieben ED, Schaid DJ, Yee V, et al. Mol Genet Metab. 2008 Jul; 94(3):326-35. Epub 2008 May 23.