1. Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, Nuffield Orthopaedic Centre University of Oxford Oxford UK
2. IMIM (Hospital del Mar Research Institute), Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES) Barcelona Spain
3. Department of Public Health, Clinical Pharmacology, and Pharmacy University of Southern Denmark Odense Denmark
4. UCB Biopharma Sprl Brussels Belgium
5. MRC Lifecourse Epidemiology Unit University of Southampton, Southampton General Hospital Southampton UK
6. Open Patient Data Explorative Network University of Southern Denmark and Odense University Hospital Odense Denmark
7. Department of Medicine Holbæk Hospital Holbæk Denmark
8. Fundació Institut Universitari per a la Recerca a l'Atenció Primària de Salut Jordi Gol i Gorina (IDIAPJ Gol), CIBERFES Barcelona Spain
9. Universitat Autònoma de Barcelona Bellaterra Spain