1. Research and Development Section, Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, Maryland.
2. DOD-VA Extremity Trauma and Amputation Center of Excellence, Walter Reed National Military Medical Center, Bethesda, Maryland.
3. Department of Rehabilitation Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
4. Regenerative Biosciences Laboratory, Uniformed Services University of the Health Sciences, Bethesda, Maryland.