Handbook of polytrauma care and rehabilitation / David X. Cifu, MD, Chairman and Herman J. Flax M.D. Professor, Department of Physical Medicine and Rehabilitation, Executive Director, Center for Rehabilitation Sciences and Engineering, Virginia Commonwealth University, Richmond, Virginia, National Director for Physical Medicine and Rehabilitation Services, U.S. Department of Veterans Affairs, Washington, DC, Henry Lew, MD, PhD, Professor, John A. Burns School of Medicine, University of Hawaii at Manoa, Rehabilitation Consultant, Defense and Veterans Brain Injury Center (DVBIC), Professor, Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, Virginia.