[1] University of Southampton,MRC Lifecourse Epidemiology Unit
[2] Southampton General Hospital,NIHR Musculoskeletal Biomedical Research Unit, Institute of Musculoskeletal Sciences
[3] University of Oxford,School of Health, Faculty of Education, Health and Sciences
[4] University of Derby,Centre for Metabolic Bone Diseases (WHO Collaborating Centre)
[5] University of Sheffield Medical School,undefined