TY - JOUR AU - Catterall, R. C. F. DO - doi:10.1302/0301-620X.50B3.455 UR - https://doi.org/10.1302/0301-620X.50B3.455 TI - EX UMBRIS ERUDITIO T2 - The Journal of Bone & Joint Surgery British Volume VL - 50-B IS - 3 PY - 1968 SP - 455 EP - 455 ER -