1. Spine Care Center, Wakayama Medical University Kihoku Hospital
2. MRC Lifecourse Epidemiology Unit, University of Southampton
3. Arthritis Research UK/MRC Centre for Musculoskeletal Work and Health, Southampton General Hospital
4. National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford
5. NIHR Southampton Nutrition Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust