[1] Madigan Army Med Ctr, Joint Base Lewis Mcchord, WA USA
[2] Uniformed Serv Univ Hlth Sci, Sch Med, Bethesda, MD USA
[3] Walter Reed Natl Mil Med Ctr, Bethesda, MD USA
[4] Johns Hopkins Univ, Appl Phys Lab, Baltimore, MD 21218 USA
[5] WRNMMC Natl Intrepid Ctr Excellence, Baltimore, MD USA
[6] Uniformed Serv Univ Hlth Sci, Dept Neurol, Bethesda, MD USA