1. Santa Monica Orthopaedic and Sports Medicine Group, Santa Monica,
California
2. University of Missouri at Kansas City, University of Kansas, Shawnee
Mission, Kansas
3. Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh,
Pennsylvania
4. Division of Sports Medicine, Children's Hospital, Boston,
Massachusetts
5. Baylor Sports Medicine Group, Houston, Texas
6. Orthopaedische Universitaetsklinik, Freiburg, Germany
7. Brigham Orthopedic Association, Boston, Massachusetts
8. Gothenburg Medical Center, Vastra Frolunda, Sweden