TY - JOUR AU - Williams, DJ DO - doi:10.1302/0301-620X.63B1.7204461 UR - https://doi.org/10.1302/0301-620X.63B1.7204461 TI - The mechanisms producing fracture-separation of the proximal humeral epiphysis T2 - The Journal of Bone & Joint Surgery British Volume VL - 63-B IS - 1 PY - 1981 SP - 102 EP - 107 ER -