1. Women's College Research Institute; University of Toronto; Toronto ON Canada
2. Department of Nephrology, Hypertension, and Clinical Pharmacology; University Hospital Bern (Inselspital); University of Bern; Bern Switzerland
3. Research Institute; California Pacific Medical Center; San Francisco CA USA
4. Department of Medicine; University of Minnesota; Minneapolis MN USA
5. Division of Epidemiology and Community Health; University of Minnesota; Minneapolis MN USA
6. Center for Chronic Disease Outcomes Research VA Health Care System; Minneapolis; MN USA
7. Bone and Mineral Section; Division of Endocrinology, Diabetes, and Clinical Nutrition; Oregon Health and Science University; Portland OR USA
8. Department of Medicine; University of California, San Francisco; San Francisco CA USA
9. Department of Epidemiology and Biostatistics; University of California, San Francisco; San Francisco CA USA