an examination of the observed placebo effect associated with the treatment of low back pain – a systematic review
;Aaron A Puhl;Christine J Reinhart;Elisabeth R Rok;H Stephen Injeyan
chemistryselect2011Vol. 16pp. 45-52
149
puhl2011painan
Abstract
OBJECTIVE: To determine whether the nonspecific effects that occur following the use of sham interventions to treat nonspecific low back pain (LBP) are large enough to be considered clinically meaningful.