TY - JOUR AU - Franken, M. AU - Grimm, B. AU - Heyligers, I. DO - doi:10.1302/0301-620X.92B1.22257 UR - https://doi.org/10.1302/0301-620X.92B1.22257 TI - A comparison of four systems for calibration when templating for total hip replacement with digital radiography T2 - The Journal of Bone & Joint Surgery British Volume VL - 92-B IS - 1 PY - 2010 SP - 136 EP - 141 ER -