TY - JOUR AU - Perkins, R AU - Skirving, AP DO - doi:10.1302/0301-620X.69B4.3611150 UR - https://doi.org/10.1302/0301-620X.69B4.3611150 TI - Callus formation and the rate of healing of femoral fractures in patients with head injuries T2 - The Journal of Bone & Joint Surgery British Volume VL - 69-B IS - 4 PY - 1987 SP - 521 EP - 524 ER -