1. National Jewish Health and University of Colorado School of Medicine, Denver, Colorado, and Hospital for Special Surgery and Weill Medical College, Cornell University; New York New York
2. The Feinstein Institute for Medical Research, Manhasset, New York, Hofstra University, Hempstead, New York, Albert Einstein College of Medicine, Bronx, New York, and Institute of Biomedical Engineering, Boğaziçi University; Istanbul Turkey
3. Hospital for Special Surgery and Weill Medical College, Cornell University; New York New York
4. The Feinstein Institute for Medical Research; Manhasset New York
5. University of Colorado School of Medicine and Denver Veterans Affairs Medical Center; Denver Colorado
6. Hospital for Special Surgery; New York New York
7. National Jewish Health; Denver Colorado
8. Weill Medical College, Cornell University; New York New York