1 MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
2 Alan Turing Institute, London, UK.
3 Departments of Medicine and Obstetrics and Gynecology, MedStar Georgetown University Hospital, Georgetown University Medical Center, Washington, DC, USA.
4 National Osteoporosis Foundation, Arlington, VA, USA.
5 International Osteoporosis Foundation, Nyon, Switzerland.
6 WHO Collaborating Center for Public Health Aspects of Musculo-Skeletal Health and Ageing, University of Liège, Liege, Belgium.
7 Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia.
8 MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK. cc@mrc.soton.ac.uk.
9 NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK. cc@mrc.soton.ac.uk.
10 Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.