1. Walter Reed National Military Medical Center, Department of Orthopaedic Surgery, Bethesda, Maryland, USA
2. Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
3. Fort Belvoir Community Hospital, Department of Orthopaedic Surgery, Fort Belvoir, Virginia, USA
4. John A. Feagin Jr. Sports Medicine Fellowship at West Point, West Point, New York, USA
5. Captain James A. Lovell Federal Health Care Center, North Chicago, Illinois, USA
6. Inova Medical Group, Fairfax, Virginia, USA