1. University of MinnesotaMinneapolis, Minnesota
2. National Jewish HealthDenver, Colorado
3. University of KentuckyLexington, Kentucky
4. University of MichiganAnn Arbor, Michigan
5. Columbia UniversityNew York, New York
6. Duke UniversityDurham, North Carolina
7. University of Illinois at ChicagoChicago, Illinois
8. University of Colorado, High Plains Research NetworkAurora, Colorado
9. New York-Presbyterian/Weill Cornell Medical CenterNew York, New York