[1] Univ Sheffield, Bone Metab Grp, Sheffield S10 2TN, S Yorkshire, England
[2] Univ Sheffield, Ctr Human Nutr, Sheffield S10 2TN, S Yorkshire, England
[3] Univ Sheffield, Div Clin Sci, Sheffield S10 2TN, S Yorkshire, England
[4] Univ Sheffield, Dept Mol & Genet Med, Sheffield S10 2TN, S Yorkshire, England