1. Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, University of California, Los Angeles, CA 90095, USA.
2. Division of Geriatrics, Department of Medicine, University of California, Los Angeles, CA 90095, USA.
3. Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
4. Department of Pathology and Laboratory Medicine and the Howard Hughes Research Institute, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
5. Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
6. VA San Diego Healthcare System, San Diego, CA 92161, USA.
7. Department of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
8. Receptor Biology Section, NIEHS, NIH, Research Triangle Park, NC 27709, USA.
9. Department of Twin Research and Genetic Epidemiology, King's College London, London SE17EH, UK.
10. Institute of Clinical Medicine, Internal Medicine, University of Eastern Finland and Kuopio University Hospital, Kuopio 70210, Finland.
11. Department of Physical Performance, Norwegian School of Sport Science, Oslo 0806, Norway.
12. University Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo 0316, Norway.
13. Iris Cantor-UCLA Women’s Health Research Center, Los Angeles, CA 90095, USA.