1. Baylor College of Medicine and Houston VA Health Services Research & Development Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey Medical Center Houston Texas
2. Nova Scotia Health Authority Dalhousie University Halifax Nova Scotia Canada
3. Tufts Medical Center Boston Massachusetts
4. Brigham and Women's Hospital Boston Massachusetts
5. Tufts Medical Center and Tufts University Boston Massachusetts
6. Memorial Hospital of Rhode Island and Alpert Medical School of Brown University Pawtucket Rhode Island