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APA Citation
Madsen, M. V., Gøtzsche, P. C., & Hróbjartsson, A. (2009). acupuncture treatment for pain: systematic review of randomised clinical trials with acupuncture, placebo acupuncture, and no acupuncture groups. BMJ, 338, . http://access.bl.uk/ark:/81055/vdc_100144713719.0x00002e