1. Department of Orthopaedics, Walter Reed National Military Medical Center, 8901 Rockville Pike, Bethesda, MD 20889
2. Department of Orthopaedics, Brown University, Alpert Medical School, 100 Butler Drive, Providence, RI 02906
3. United States Naval Academy, Naval Health Clinic Annapolis, 626 MacCubbin Ln, Gambrills, Annapolis, MD 21054