1. University of Iceland; Reykjavík Iceland
2. Genentech Inc.; South San Francisco California
3. Cleveland Clinic; Cleveland Ohio
4. University of Michigan; Ann Arbor
5. Mayo Clinic; Rochester Minnesota
6. Hospital for Special Surgery; New York New York
7. Duke University and Duke University Medical Center; Durham North Carolina
8. Massachusetts General Hospital; Boston
9. University of Pennsylvania; Philadelphia
10. Boston University; Boston Massachusetts