Renal insufficiency, vitamin B(12) status, and population attributable risk for mild hyperhomocysteinemia among coronary artery disease patients in the era of folic acid-fortified cereal grain flour - Liaugaudas,G.; Jacques,P.F.; Selhub,J.; Rosenberg,I.H.; Bostom,A.G. (Arterioscler Thromb Vasc Biol, 2001)