1. Department of Medicine, University of California, San Francisco, California
2. Creighton University Medical Center, Omaha, Nebraska
3. Tromso Endocrine Research Group, UiT the Arctic University of Norway, Tromsø, Norway
4. Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
5. Mellanby Centre for Bone Research, University of Sheffield, Sheffield, United Kingdom
6. MRC Elsie Widdowson Laboratory, Cambridge, United Kingdom
7. Department of Medicine, Norwich Medical School, Faculty of Medicine and Health Sciences, Norwich, United Kingdom
8. University of East Anglia, Norwich, United Kingdom
9. Boston University School of Medicine, Boston, Massachusetts
10. Oregon Health and Science University, Portland, Oregon
11. Queen’s University, Kingston, Ontario, Canada
12. KuLeuven, Gasthuisbert, Leuven, Belgium
13. Departments of Bioengineering and Therapeutic Sciences and Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
14. Department of Dermatology, University of California, San Francisco, San Francisco, California