Molecular genetic analysis in mild hyperhomocysteinemia: a common mutation in the methylenetetrahydrofolate reductase gene is a genetic risk factor for cardiovascular disease - Kluijtmans, L AJ; van den, Heuvel LPWJ; Boers, G HJ; Fross, P; Stevens, E MB; van Oost, B A; den Jeijer, M; Trijbels, F JM; Rozen, R; Blom, H J (Am J Hum Genet, 1996)