1. Extremity Trauma and Regenerative Medicine Task Area, United States Army Institute of Surgical Research, Fort Sam Houston, TX, USA
2. DoD-VA Extremity Trauma and Amputation Center of Excellence, Fort Sam Houston, TX, USA
3. Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
4. Department of Surgery, Walter Reed National Military Medical Center, Bethesda, MD, USA