1. Brigham and Women's Hospital and Harvard Medical School; Boston Massachusetts
2. University of Colorado School of Medicine; Aurora
3. Colorado School of Public Health; Aurora
4. Benaroya Research Institute at Virginia Mason; Seattle Washington
5. Scripps Health; La Jolla California
6. Feinstein Institute for Medical Research; Manhasset New York
7. Cedars-Sinai Medical Center; Los Angeles California
8. Veterans Affairs Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center; Omaha Nebraska