University of Pittsburgh Medical Center Sports Concussion Program, Department of Orthopaedic Surgery/University of Pittsburgh Medical Center for Sports Medicine, University of Pittsburgh Medical Center Pittsburgh, Pennsylvania (Collins, Lovell)
Department of Psychiatry University of British Columbia, Vancouver, British Columbia, Canada (Iverson)
Vice President, Research and Product Development, Riddell, Inc., Rosemont, Illinois (Ide)
Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh Steelers Football Club, Pittsburgh, Pennsylvania (Maroon)
Reprint requests: Micky Collins, Ph.D., UPMC Sports Concussion Program, UPMC Center for Sports Medicine, 3200 South Water Street, Pittsburgh, PA 15206. Email: [email protected]
Received, June 2, 2005.
Accepted, December 5, 2005.