TY - JOUR AU - Freudmann, M. AU - Bollen, S. DO - doi:10.1302/0301-620X.93BSUPP_I.0930013d UR - https://doi.org/10.1302/0301-620X.93BSUPP_I.0930013d TI - THE DEMOGRAPHICS OF ACL INJURY OVER A TWELVE YEAR PERIOD: IS SKIING TO BLAME FOR THE CHANGES? T2 - Orthopaedic Proceedings VL - 93-B IS - SUPP_I PY - 2011 SP - 13 EP - 13 ER -