1. MRC Lifecourse Epidemiology Unit, University of Southampton and NIHR Musculoskeletal Biomedical Research Unit, University of OxfordUK
2. Department of Public Health Epidemiology and Health Economics, University of Liège
LiègeBelgium
3. Service de Rhumatologie et Pathologie Osseuse, Hôpital Edouard Herriot
LyonFrance
4. CCBR
Synarc, BallerupDenmark
5. Medicine, Epidemiology and Orthopaedic Surgery, University of California
San Francisco; and Synarc, San Francisco, CAUSA
6. CONROD, University of Queensland
Herston, QueenslandAustralia
7. McMaster University Hamilton
OntarioCanada
8. Hospital Universitario Virgen Macarena
SevillaSpain
9. Centre of Osteoporosis and Osteoarticular Diseases
BialystokPoland
10. State Institute of Rheumatology, Russian Academy of Medical Sciences
MoscowRussian Federation
11. Service de Rhumatologie, Hôpital Henri Mondor
CréteilFrance
12. Institute of Bone and Joint Research, Royal North Shore Hospital
St Leonards NSWAustralia