1. Albert Einstein College of Medicine; Bronx, New York
2. Tufts Medical Center; Boston, Massachusetts
3. University of Massachusetts School of Medicine; Worcester
4. CORRONA, Inc.; Boston, Massachusetts
5. NYU Hospital for Joint Diseases; New York
6. New York University School of Medicine and NYU Hospital for Joint Diseases; New York
7. Seattle Rheumatology Associates; Seattle, Washington
8. Albany Medical College; Albany, New York