TY - JOUR AU - Thompson, Harral DO - doi:10.1302/0301-620X.44B3.655 UR - https://doi.org/10.1302/0301-620X.44B3.655 TI - THE "HALO" TRACTION APPARATUS T2 - The Journal of Bone & Joint Surgery British Volume VL - 44-B IS - 3 PY - 1962 SP - 655 EP - 661 ER -