1. Division of Urologic Oncology, Moores Comprehensive Cancer Center and Division of Urology, San Diego Veterans Affairs Medical Center, University of California-San Diego, La Jolla, San Francisco, California
2. Section of General Medicine, Center for Chronic Disease Outcomes Research, Minneapolis Veterans Affairs Medical Center, Minneapolis, Minnesota
3. Department of Medicine (Bone and Mineral Unit), Oregon Health and Science University, Portland, Oregon
4. Department of Family and Preventive Medicine, University of California-San Diego School of Medicine, La Jolla, San Francisco, California
5. Department of Medicine, University of California-San Francisco, San Francisco, California
6. Department of Orthopaedics and Rehabilitation, Oregon Health and Science University, Portland, Oregon