1. Arthritis Research UK Epidemiology Unit, University of Manchester, UK.
2. Institute of Psychological Sciences, University of Leeds, UK.
3. Department of Obstetrics, Gynaecology and Andrology, Albert Szent-Gyorgy Medical University, Szeged, Hungary.
4. Division of Gerontology and Geriatrics & Centre for Musculoskeletal Research, Department of Experimental Medicine, Katholieke Universiteit Leuven, Belgium.
5. Department of Experimental Medicine, Katholieke Universiteit Leuven, Belgium.
6. Department of Medicine, Santiago de Compostela University, Complejo Hospitalario Universitario de Santiago (CHUS); CIBER de Fisiopatología Obesidad y Nutricion (CB06/03), Instituto Salud Carlos III, Santiago de Compostela, Spain.
7. Andrology Research Unit, Developmental & Regenerative Biomedicine Research Group, Manchester Royal Infirmary, University of Manchester, UK.
8. Andrology Unit, Department of Clinical Physiopathology, University of Florence, Italy.
9. Reproductive Medicine Centre, Malmö University Hospital, University of Lund, Sweden.
10. Department of Endocrinology, Royal Free and University College Hospital Medical School, Royal Free Hospital, London, UK.
11. Department of Reproductive Biology, Imperial College London, UK.
12. Department of Andrology and Reproductive Endocrinology, Medical University of Lodz, Poland.
13. Department of Human Nutrition, University of Glasgow, UK.
14. Andrology Unit, United Laboratories of Tartu University Clinics, Tartu, Estonia.
15. Department of Andrology and Endocrinology, Katholieke Universiteit Leuven, Belgium.
16. School of Community Based Medicine, University of Manchester, Hope Hospital, UK.