[1] University of Maryland,School of Medicine, Department of Physical Therapy and Rehabilitation Science
[2] University of Maryland,Department of Epidemiology and Public Health
[3] The Johns Hopkins Medical Institutions,Acute Care Neurology, Director, Division of Brain Injury Outcomes
[4] University of Maryland School of Medicine,Geriatric Research, Education and Clinical Center (GRECC), Baltimore VA Medical Center
[5] University and University Hospital Zurich,Department of Neurology