TY - JOUR AU - Chalmers, John DO - doi:10.1302/0301-620X.53B1.160 UR - https://doi.org/10.1302/0301-620X.53B1.160 TI - Diseases of Bones and Joints T2 - The Journal of Bone & Joint Surgery British Volume VL - 53-B IS - 1 PY - 1971 SP - 160 EP - 160 ER -