TY - JOUR AU - Hooper, Jonathan C. AU - Jones, E. Wyn DO - doi:10.1302/0301-620X.53B1.23 UR - https://doi.org/10.1302/0301-620X.53B1.23 TI - PRIMARY PROTRUSION OF THE ACETABULUM T2 - The Journal of Bone & Joint Surgery British Volume VL - 53-B IS - 1 PY - 1971 SP - 23 EP - 29 ER -