1. MGH Institute for Technology Assessment, Harvard Medical School, Boston, Massachusetts, USA.
2. Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, Michigan, USA.
3. Department of Health Technology and Services Research, Technical Medical Centre, University of Twente, Enschede, the Netherlands.
4. Department of Psychiatry, Indiana University School of Medicine, Indianapolis, Indiana, USA.
5. Department of Neurosurgery and Neurology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
6. Michigan Concussion Center, University of Michigan, Ann Arbor, Michigan, USA.