Affiliation: | 1. Department of Medicine, University of California, , San Francisco, CA, USA;2. Endocrine Research Unit, Veterans Affairs Medical Center, , San Francisco, CA, USA;3. Department of Medicine, Campus Bio‐Medico, , Rome, Italy;4. Division of Bone and Mineral Diseases, Washington University, , St. Louis, MO, USA;5. California Pacific Medical Center Research Institute, , San Francisco, CA, USA;6. Department of Epidemiology and Biostatistics, University of California, , San Francisco, CA, USA |