1. Department of Public Health; Erasmus MC-University Medical Center; Rotterdam; the Netherlands
2. Department of Rehabilitation Medicine; Mount Sinai School of Medicine; New York; NY
3. Seton Brain and Spine Institute; Austin; TX
4. Department of Psychology; University of Texas; Austin; TX
5. Department of Neurological Surgery and Neurotrauma Clinical Trials Center; University of Pittsburgh Medical Center; Pittsburgh; PA
6. Department of Neurosurgery; Antwerp University Hospital; Edegem; Belgium