1. University of California San Francisco
2. University of California, San Francisco and San Francisco Veterans Affairs Medical Center San Francisco California
3. University of Texas Southwestern Medical Center Dallas
4. Loma Linda University School of Medicine Loma Linda California
5. University of Wisconsin School of Medicine and Public Health Madison
6. University of Colorado Aurora
7. University of Alabama at Birmingham and Geriatric Research Education and Clinical Center, Veterans Affairs Birmingham Health Care System Birmingham Alabama
8. Veterans Affairs Portland Health Care System and Oregon Health & Science University Portland
9. University of Pennsylvania Philadelphia
10. University of California, San Francisco and Center for Vulnerable Populations and Zuckerberg San Francisco General Hospital San Francisco California