[1] Def & Vet Brain Injury Ctr DVBIC, Palo Alto, CA USA
[2] Stanford Sch Med, Neurosurg, Stanford, CA USA
[3] Stanford Sch Med, Psychiat & Behav Sci, Stanford, CA USA
[4] VA Palo Alto Hlth Care Syst, Palo Alto, CA USA
[5] Harvard Med Sch, Neuroradiol, Boston, MA USA
[6] Def & Vet Brain Injury Ctr DVBIC, Springfield, VA USA
[7] Brain Trauma Fdn, New York, NY USA
[8] Univ Maryland, Baltimore, MD 21201 USA