1. Department of Medicine, School of Clinical Sciences at Monash Health Monash University Clayton Victoria Australia
2. MRC Nutrition and Bone Health Group Cambridge UK
3. Ageing and Movement Research Group, Population Health Sciences, Bristol Medical School University of Bristol Bristol UK
4. MRC Lifecourse Epidemiology Centre, Human Development and Health University of Southampton Southampton UK
5. MRC Unit The Gambia London School of Hygiene and Tropical Medicine The Gambia
6. National Institute for Health Research (NIHR) Musculoskeletal Biomedical Research Unit University of Oxford Oxford UK