TY - JOUR AU - Schaeren, S. AU - Bischoff-Ferrari, H. A. AU - Knupp, M. AU - Dick, W. AU - Huber, J. F. AU - Theiler, R. DO - doi:10.1302/0301-620X.87B2.15548 UR - https://doi.org/10.1302/0301-620X.87B2.15548 TI - A computer touch-screen version of the North American Spine Society outcome assessment instrument for the lumbar spine T2 - The Journal of Bone & Joint Surgery British Volume VL - 87-B IS - 2 PY - 2005 SP - 201 EP - 204 ER -