TY - JOUR AU - Sandén, B. AU - Olerud, C. AU - Petrén-Mallmin, M. AU - Larsson, S. DO - doi:10.1302/0301-620X.84B3.0840387 UR - https://doi.org/10.1302/0301-620X.84B3.0840387 TI - Hydroxyapatite coating improves fixation of pedicle screws T2 - The Journal of Bone & Joint Surgery British Volume VL - 84-B IS - 3 PY - 2002 SP - 387 EP - 391 ER -