1. Department of Physical Medicine and Rehabilitation, University of Florida, Gainesville, Florida;
2. Department of Orthopedics, University of Colorado, Aurora, Colorado;
3. Sports Medicine Center, Children's Hospital Colorado, Aurora, Colorado;
4. University of New England School of Medicine;
5. Champion Physical Therapy & Performance, Watham, Massachusetts; and
6. Department of Physiatry, Hospital for Special Surgery, New York, New York.