TY - JOUR AU - Dworkin, R H; Turk, D C; Katz, N P TI - Evidence-based clinical trial design for chronic pain pharmacotherapy: a blueprint for ACTION JO - Pain IS - 3, Suppl VL - 152 PY - 2011 DO - 10.1016/j.pain.2010.11.008 SP - S107 EP - S115 N1 - , et al. ER -