TY - JOUR AU - Calder, J. D. F. AU - Buttery, L. AU - Revell, P. A. AU - Pearse, M. AU - Polak, J. M. DO - doi:10.1302/0301-620X.86B8.14834 UR - https://doi.org/10.1302/0301-620X.86B8.14834 TI - Apoptosis – a significant cause of bone cell death in osteonecrosis of the femoral head T2 - The Journal of Bone & Joint Surgery British Volume VL - 86-B IS - 8 PY - 2004 SP - 1209 EP - 1213 ER -