1. Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
2. Medical Research Council Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, United Kingdom
3. University of Exeter Medical School, University of Exeter, Exeter, United Kingdom
4. Duke University School of Medicine, Durham, North Carolina
5. Vth Department of Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
6. Longitudinal Studies Section, Clinical Research Branch, Gerontology Research Center, National Institute on Aging, Baltimore, Maryland
7. Division of Endocrinology, Stanford University School of Medicine, Stanford, California
8. Department of Surgery and Cancer, Imperial College London, Hammersmith Campus, London, United Kingdom
9. Department of Physiology, Institute of Biomedicine, University of Turku, Turku, Finland
10. Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
11. Department of Orthopaedics and Clinical Sciences, Skåne University Hospital, Lund University, Malmö, Sweden
12. Family Medicine and Public Health, University of California-San Diego, San Diego, California
13. Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
14. Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg and Geriatric Medicine, Sahlgrenska University Hospital, Mölndal, Sweden
15. Boston University School of Public Health, Boston, Massachusetts
16. Framingham Heart Study, Framingham, Massachusetts
17. Department of Medicine, Section of General Internal Medicine, Boston University School of Medicine, Boston, Massachusetts
18. School of Public Health, Oregon Health & Science University, Portland, Oregon
19. Department of Genomics of Common Disease, School of Public Health, Imperial College London, London, United Kingdom
20. Hammersmith Hospital, London, United Kingdom
21. Arthritis Research UK Centre for Epidemiology, Centre for Musculoskeletal Research, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
22. Division of Genetic and Genomic Medicine, Department of Pediatrics, University of California, Irvine, California
23. Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
24. Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
25. Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
26. Institute for Aging Research, Hebrew Senior Life and Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
27. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
28. Department of Clinical and Experimental Medicine, Katholieke Universiteit Leuven, Laboratory of Clinical and Experimental Endocrinology, Leuven, Belgium
29. Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
30. Synlab Academy, Synlab Holding Deutschland GmbH, Mannheim, Germany
31. Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
32. Bone & Mineral Unit, Oregon Health & Science University, Portland, Oregon
33. Andrology Research Unit, Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, The University of Manchester, Central Manchester University Hospitals National Health Service Foundation Trust, Manchester, United Kingdom
34. Research Program in Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts