1. Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden
2. Department of Drug Treatment, Sahlgrenska University Hospital, Region Västra Götaland, SE-413 45 Gothenburg, Sweden
3. Department of Clinical Chemistry, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg SE-413 45, Sweden
4. Department of Laboratory Medicine, Division of Pathology, Karolinska Institute, Huddinge,Sweden
5. Department of Physiology, Institute of Biomedicine and Turku Center for Disease Modeling, University of Turku, Turku FI-20014,Finland