TY - JOUR AU - MacDonald, S. AU - Bourne, R. B. AU - Chess, D. AU - McCalden, R. W. AU - Rorabeck, C. H. AU - Thompson, A. DO - doi:10.1302/0301-620X.91BSUPP_II.0910239b UR - https://doi.org/10.1302/0301-620X.91BSUPP_II.0910239b TI - DO METAL ION LEVELS IN METAL-ON-METAL THAS CHANGE OVER TIME – MIDTERM RESULTS OF A PROSPECTIVE RANDOMISED CLINICAL TRIAL T2 - Orthopaedic Proceedings VL - 91-B IS - SUPP_II PY - 2009 SP - 239 EP - 239 ER -