TY - JOUR AN - 21 AU - Burton,A.K. AU - Waddell,G. AU - Tillotson,K.M. TI - Information and advice to patients with back pain can have a positive effect: a randomized controlled trial of a novel educational booklet in primary care. JO - Spine PY - 1999 VL - 1 SP - 2484-2491 M2 - 2484 ER -