1. Harvard T.H. Chan School of Public Health Boston Massachusetts
2. Harvard T.H. Chan School of Public Health and Massachusetts General Hospital and Harvard Medical School Boston Massachusetts
3. Harvard T.H. Chan School of Public Health and Brigham and Women's Hospital and Harvard Medical School Boston Massachusetts
4. Brigham and Women's Hospital and Harvard Medical School Boston Massachusetts
5. University of Connecticut Health Center Farmington Connecticut
6. Brigham and Women's Hospital and Harvard Medical School and VA Boston Healthcare System Boston Massachusetts