TY - JOUR AU - Apley, A. G. DO - doi:10.1302/0301-620X.51B2.394-a UR - https://doi.org/10.1302/0301-620X.51B2.394-a TI - Orthopaedics for the Undergraduate T2 - The Journal of Bone & Joint Surgery British Volume VL - 51-B IS - 2 PY - 1969 SP - 394 EP - 394 ER -