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"We found a small analgesic effect of acupuncture that seems to lack clinical relevance and cannot be clearly distinguished from bias. Whether needling at acupuncture points, or at any site, reduces pain independently of the psychological impact of the treatment ritual is unclear." Madsen MV, Gotzsche PC, Hrobjartsson A. BMJ (27th January 2009) [Quoted from the full text of the review]