1. Massachusetts General Hospital; Boston
2. Weill Cornell Medical College; New York New York
3. Boston Children's Hospital and Beth Israel Deaconess Medical Center; Boston Massachusetts
4. Cleveland Clinic; Cleveland Ohio
5. University of California, Los Angeles, and University of Nevada; Las Vegas
6. American College of Rheumatology; Atlanta Georgia
7. University of Michigan; Ann Arbor
8. San Antonio Military Medical Center; Fort Sam Houston Texas