[1] US Army Med Res & Mat Command, Clin & Rehabil Med Res Program, Ft Detrick, MD 21702 USA
[2] Dept Vet Affairs, Off Res & Dev, Washington, DC USA
[3] Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Natl Ctr Med Rehabil Res, NIH, Bethesda, MD USA
[4] US Army Med Res & Mat Command, Tissue Injury & Regenerat Med Project Management, US Army Mat Dev Author, Ft Detrick, MD USA
[5] Walter Reed Natl Mil Med Ctr, Extrem Trauma & Amputat Ctr Excellence, Bethesda, MD USA
[6] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA
[7] Natl Sci Fdn, Disabil & Rehabil Engn Program, Alexandria, VA USA
[8] Natl Sci Fdn, Engn Biomed Syst Program, Alexandria, VA USA
[9] NIAMSD, NIH, Bethesda, MD 20892 USA
[10] Greater Los Angeles Healthcare Syst, Vet Adm, Los Angeles, CA USA