Shawn Marshall, MD MSc FRCPC, is a specialist in physical medicine and rehabilitation and professor and division head of Physical Medicine and Rehabilitation at the University of Ottawa and the Ottawa Hospital. He is also department head of Physical Medicine and Rehabilitation at Bruyere Continuing Care. His clinical practice focuses on acquired brain injury rehabilitation where Dr. Marshall manages in-patients as well as out-patient clinics for persons with moderate to severe traumatic brain injuries. He is also involved in assessment and treatment of persons with mild traumatic brain injury (TBI)/concussion and persisting symptoms. He has a Master of Science Degree in Epidemiology and Community Health and is active in research involving brain injury rehabilitation, concussion, and persisting symptoms as well as driving and disability.