conducted numerous workshops and seminars nationally and internationally on TBI—its nature, assessment, remediation, and social ramifications. She had a Department of Veterans Affairs (VA) grant for a longitudinal study on the neuropsychological consequences of brain injury in a veteran (mostly Vietnam) population. Dr. Lezak has also been a participant of, or consultant to, many committees and study groups concerned with TBI and TBI rehabilitation including the California State Athletic Commission (developing an examination for boxers), the NIH Coma Data Bank Project, and the Conseil Québécois de la Recherche Sociale (developing a data bank for TBI due to motor vehicle accidents). Dr. Lezak was Honorary Visiting Professor, West China University of Medical Sciences in 1996, was a recipient of the Annual Award for outstanding service to the brain injured from the Department of Rehabilitation of the Medical College of Virginia, and the Clinical Service Award from the National Head Injury Foundation. Dr. Lezak earned her bachelor degree in general studies and master’s degree in human development from the University of Chicago. Her Ph.D. in clinical psychology is from the University of Portland. She has also served as a member of the Institute of Medicine Committee on Traumatic Brain Injury.


David Matchar, M.D., is director of the Center for Clinical Health Policy Research, and professor, Department of Medicine, Duke University. After completing his undergraduate degree in statistics at Princeton University, Dr. Matchar earned his medical degree from the University of Maryland. He then completed a research fellowship in general internal medicine at Duke University Medical Center in 1983, and was awarded an A.W. Mellon Fellowship at New England Medical Center in 1984. Dr. Matchar focuses his work on evaluation of clinical practice based on “best evidence” and implementation and evaluation of innovative strategies to promote practice change. For 10 years, he directed the Duke Evidence-based Practice Center, one of 12 such centers designated by AHRQ. Matchar served as a member of the Institute of Medicine Committee on Gulf War and Health: A Review of the Medical Literature Relative to the Gulf War Veterans Health. Dr. Matchar focuses his research on evidence synthesis to support informed clinical and policy decisions, and on the implementation and evaluation of innovative strategies to promote practice change.


Thomas A. Mellman, M.D., is professor and vice-chair for research, Department of Psychiatry, Howard University, and associate program director for the Howard University General Clinical Research Center. Dr. Mellman received his medical degree from Case Western Reserve, School of Medicine, in 1982. During his 11 years on the faculty at the University of Miami, School of Medicine, Department of Psychiatry and Behavioral Sciences, he



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