What alternative health

practitioners might not tell you



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"This meta-analysis of 9 trials showed that sham-controlled trials identified no clinically meaningful short-term benefits in pain or function with acupuncture for knee osteo-arthritis, although trials that did not use a sham control identified some benefits." Implications: "The use of different types of comparisons (sham acupuncture vs. interventions in which the participant knew whether they were receiving acupuncture) explains the variability in the conclusions of published trials about the effectiveness of acupuncture for treating knee osteo-arthritis. Placebo or expectation effects probably account for the observed benefits." Annals of Internal Medicine (19th June 2007)