1. Centre for Bone and Arthritis Research; Department of Internal Medicine and Clinical Nutrition; Institute of Medicine, Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
2. Geriatric Medicine; Institute of Medicine; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
3. Division of Epidemiology; Department of Family Medicine and Public Health; School of Medicine; University of California San Diego; La Jolla CA USA
4. Research Institute; California Pacific Medical Center; and Department of Epidemiology and Biostatistics; University of California; San Francisco CA USA
5. Department of Epidemiology; Graduate School of Public Health; University of Pittsburgh; Pittsburgh PA USA
6. Department of Medicine; Stanford University; Stanford CA USA
7. Clinical and Molecular Osteoporosis Research Unit; Department of Clinical Sciences; Lund University; and Department of Orthopaedics; Skåne University Hospital; Malmö Sweden
8. Department of Medical Sciences; University of Uppsala; Uppsala Sweden
9. Bioinformatics Core Facility; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
10. Jockey Club Centre for Osteoporosis Care and Control; Prince of Wales Hospital; The Chinese University of Hong Kong, Shatin; Hong Kong SAR China
11. Bone and Mineral Unit; Department of Medicine; Oregon Health & Science University; Portland OR USA