1. Department of General Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland.
2. Naval Medical Research Center, Regenerative Medicine Department, Silver Spring, Maryland.
3. Norman M. Rich Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
4. Surgical Critical Care Initiative (SC2i), Uniformed Services University of the Health Sciences, Department of Surgery, Bethesda, Maryland.
5. Department of Orthopaedic Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland.