1. Department of Health and Care Sciences, Faculty of Health Sciences; University of Tromsø; Tromsø Norway
2. Osteoporosis & Bone Biology Program, Garvan Institute of Medical Research; Sydney Australia
3. Department of Clinical Medicine, Faculty of Health Sciences; University of Tromsø; Tromsø Norway
4. Department of Obstetric and Gynecology; University Hospital of North Norway; Tromsø Norway
5. Medical Clinic; University Hospital of North Norway; Tromsø Norway
6. Division of Epidemiology; Norwegian Institute of Public Health; Oslo Norway
7. Department of Community Medicine; Institute of Health and Society, University of Oslo; Norway
8. Department of Public Health and Primary Health Care; University of Bergen; Norway
9. Department of Radiology; University Hospital of North Norway; Tromsø Norway
10. Department of General Practice; Maastricht University; Maastricht The Netherlands
11. Department of Endocrinology; St Vincent's Hospital; Sydney Australia
12. St. Vincent's Clinical School, University of New South Wales; Sydney Australia
13. School of Medicine, University of Notre Dame; Sydney Australia