TY - JOUR AU - Leunig, M. AU - Mladenov, K. AU - Jamali, A.A. AU - Meyer, D.C. AU - Martinez, A. AU - Beck, M. AU - Ganz, R. DO - doi:10.1302/0301-620X.91BSUPP_I.0910064b UR - https://doi.org/10.1302/0301-620X.91BSUPP_I.0910064b TI - ANTEROPOSTERIOR PELVIC RADIOGRAPHS TO ASSESS ACETABULAR RETROVERSION: HIGH VALIDITY OF THE “CROSS-OVER-SIGN” T2 - Orthopaedic Proceedings VL - 91-B IS - SUPP_I PY - 2009 SP - 64 EP - 64 ER -