TY - JOUR AU - Mahaisavariya, B AU - Laupattarakasem, W DO - doi:10.1302/0301-620X.75B1.8421038 UR - https://doi.org/10.1302/0301-620X.75B1.8421038 TI - Ultrasound or image intensifier for closed femoral nailing T2 - The Journal of Bone & Joint Surgery British Volume VL - 75-B IS - 1 PY - 1993 SP - 66 EP - 68 ER -