RT Journal Article SR Electronic T1 When to retire after concussion? JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 380 OP 382 DO 10.1136/bjsm.35.6.380 VO 35 IS 6 A1 Paul McCrory YR 2001 UL http://bjsm.bmj.com/content/35/6/380.abstract AB This article has been retracted. See the retraction notice for details. The PDF is retained for transparency.