1. Brigham and Women's Hospital and Harvard Medical School Boston Massachusetts
2. Brigham and Women's Hospital Boston Massachusetts
3. Brigham and Women's Hospital, Harvard Medical School, and Boston University School of Public Health Boston Massachusetts
4. Hospital for Special Surgery and Weill Cornell Medicine New York New York
5. Boston University School of Medicine Boston Massachusetts
6. Massachusetts General Hospital Boston Massachusetts
7. Mayo Clinic Rochester Minnesota
8. Vanderbilt University Medical Center Nashville Tennessee
9. Cleveland Clinic Cleveland Ohio