TY - JOUR AU - Grotle M. AU - Maher C. BT - Clinical Journal of Pain CN - Y LA - eng LB - MS M1 - 8 N1 - AR10 - 2nd qtr PY - 2009 SP - 666 EP - 70. T2 - Clinical Journal of Pain TI - Evaluation of the predictive validity of the Orebro musculoskeletal pain screening questionnaire VL - 25 ER -