1. Dallas VA Medical Center Dallas TX
2. Baylor University Medical Center Dallas TX
3. Medicine Virginia Commonwealth University and McGuire VA Medical Center Richmond VA
4. University of Alberta Edmonton Alberta Canada
5. University of Washington Seattle WA
6. University of Toronto Toronto Ontario Canada
7. Mayo Clinic Rochester MN
8. Yale University New Haven CT
9. University of Rochester Rochester NY
10. University of California San Francisco CA
11. University of Texas, Health Science Center Houston TX
12. Mayo Clinic Scottsdale AZ
13. Mercy Medical Center, University of Maryland School of Medicine Baltimore MD
14. Emory University Atlanta GA
15. Biostatistics Richmond VA
16. University of Pennsylvania Philadelphia PA