ORIGINAL ARTICLE Risk of injury in elite football played on artificial turf versus natural grass: a prospective two-cohort study J Ekstrand, T Timpka, M Ha¨gglund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
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ORIGINAL ARTICLE Risk of injury in elite football played on artificial turf versus natural grass: a prospective two-cohort study J Ekstrand, T Timpka, M Ha¨gglund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See end of article for authors’ affiliations . . . . . . . . . . . . . . . . . . . . . . . Correspondence to: Professor Ekstrand, Sports Clinic, Solstigen 3, S-589 43, Linko¨ping, Sweden; jan.ekstrand@telia.com Accepted 3 September 2006 Published Online First 21 September 2006 . . . . . . . . . . . . . . . . . . . . . . . Br J Sports Med 2006;40:975–980. doi: 10.1136/bjsm.2006.027623 Objective: To compare injury risk in elite football played on artificial turf compared with natural grass. Design: Prospective two-cohort study. Setting: Male European elite football leagues. Part
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