1. University of Liège World Health Organization (WHO) Collaborating Center for Epidemiology of Musculoskeletal Health and Ageing, , Liège , Belgium
2. University of Liège Division of Public Health, Epidemiology and Health Economics, , Liège , Belgium
3. King Saud University Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, , Riyadh , Kingdom of Saudi Arabia
4. University of Palermo Geriatric Unit, Department of Internal Medicine and Geriatrics, , Palermo , Italy
5. Geneva University Hospitals and Faculty of Medicine Division of Bone Diseases, , Geneva , Switzerland
6. Child, Adolescent Health and Ageing, World Health Organization (WHO) Ageing and Health Unit, Department of Maternal, Newborn, , Geneva , Switzerland
7. World Health Organization Demographic Change and Healthy Aging Unit, Social Determinants of Health, , Geneva , Switzerland
8. Adolescent Health and Ageing, World Health Organization Epidemiology, Monitoring and Evaluation Unit, Maternal, Newborn, Child, , Geneva , Switzerland
9. University of Southampton, Southampton General Hospital MRC Lifecourse Epidemiology Unit, , Southampton , UK