Braddom's Physical Medicine and Rehabilitation Review A necessary resource for the entire rehabilitation team. About the Author David Xavier Cifu is an American physiatrist, researcher, and medical educator. He is the Associate Dean for Innovation and System Integration in the School of Medicine at Virginia Commonwealth University School of Medicine, the chairman and Herman J. Flax M.D. Professor of the Department of Physical Medicine and Rehabilitation at Virginia Commonwealth University, staff physiatrist at the Hunter Holmes McGuire Veterans Administration Medical Center, founding director of the VCU-Center for Rehabilitation Science and Engineering and senior TBI specialist in the Department of Veterans Affairs' Veterans Health Administration.