1. Department of Internal Medicine University of Florida Gainesville Florida USA
2. Department of Orthopaedics and Rehabilitation University of Florida Gainesville Florida USA
3. Department of Anesthesiology University of Florida Gainesville Florida USA
4. Department of Community Health and Family Medicine University of Florida Gainesville Florida USA
5. Department of Applied Kinesiology and Physiology University of Florida Gainesville Florida USA
6. Department of Physical Medicine and Rehabilitation University of California at Davis Sacramento California USA