1. Baylor College of Medicine and Michael E. DeBakey VAMC; Houston Texas
2. Tufts Medical Center; Boston Massachusetts
3. University of Toronto; Toronto Ontario Canada
4. Tufts Medical Center and Tufts University; Boston Massachusetts
5. Northwestern Feinberg School of Medicine; Chicago Illinois
6. Memorial Hospital of Rhode Island and Alpert Medical School of Brown University; Pawtucket Rhode Island
7. University of Maryland School of Medicine; Baltimore
8. Ohio State University; Columbus
9. University of Arizona; Tucson
10. University of California; San Francisco