1. Hospital for Special Surgery, Weill Cornell Medicine New York New York
2. OrthoCarolina Hip and Knee Center Charlotte North Carolina
3. Brigham and Women's Hospital Boston Massachusetts
4. US Department of Defense Tucson Arizona
5. Multispecialty Physician Partners, LLC, Colorado Arthritis Associates Lakewood, Colorado
6. University of Pennsylvania Philadelphia
7. Columbia University New York New York
8. University of Utah and Veterans Affairs Medical Center Salt Lake City
9. University of Pittsburgh Medical Center Pittsburgh Pennsylvania
10. University of Nebraska Medical Center, Omaha, Nebraska, and Forward Databank Wichita, Kansas
11. Sah Orthopaedic Associates, Institute for Joint Restoration Freemont, California
12. Mayo Clinic Rochester Minnesota
13. Albert Einstein College of Medicine Bronx New York
14. American College of Rheumatology Atlanta Georgia
15. University of Alabama at Birmingham and Veterans Affairs Medical Center Birmingham Alabama