%0 Journal Article %T Vitamin B12, Folate, Homocysteine, and Bone Health in Adults and Elderly People: A Systematic Review with Meta-Analyses %A J. P. van Wijngaarden %A E. L. Doets %A A. Szczeci¨˝ska %A O. W. Souverein %J Journal of Nutrition and Metabolism %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/486186 %U http://dx.doi.org/10.1155/2013/486186