Effect of vitamin B-6 deficiency on fasting plasma homocysteine concentrations. - Miller,J.W.; Ribaya-Mercado,J.D.; Russell,R.M.; Shepard,D.C.; Morrow,F.D.; Cochary,E.F.; Sadowski,J.A.; Gershoff,S.N.; Selhub,J. (Am J Clin Nutr, 1992)