TY - JOUR AU - Morris, RW DO - doi:10.1302/0301-620X.75B5.8376419 UR - https://doi.org/10.1302/0301-620X.75B5.8376419 TI - Bilateral procedures in randomised controlled trials T2 - The Journal of Bone & Joint Surgery British Volume VL - 75-B IS - 5 PY - 1993 SP - 675 EP - 676 ER -