1. WHO Collaborating Centre for Public Health aspects of musculo‐skeletal health and aging, Division of Public Health, Epidemiology and Health Economics University of Liège Liège Belgium
2. Geriatrics Department Parc de Salut Mar Barcelona Spain
3. Rehabilitation Research Group Hospital Del Mar Medical Research Institute (IMIM) Barcelona Spain
4. School of Medicine Universitat Pompeu Fabra Barcelona Spain
5. Chair for Biomarkers of Chronic Diseases, Biochemistry Department College of Science, King Saud University Riyadh KSA
6. Royal Belgian Society of Laboratory Medicine Verviers Belgium
7. Department of Clinical Chemistry University of Liège, CHU–Sart Tilman Liège Belgium