TY - JOUR AU - Froud, R AU - Eldridge, S AU - Underwood, M DO - doi:10.1302/0301-620X.91BSUPP_II.0910284a UR - https://doi.org/10.1302/0301-620X.91BSUPP_II.0910284a TI - OUTCOME MEASURES AND POWER IN NON-SPECIFIC LOW BACK PAIN TRIALS T2 - Orthopaedic Proceedings VL - 91-B IS - SUPP_II PY - 2009 SP - 284 EP - 284 ER -