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"Both study and control groups showed significant improvement with respect to time effects in terms of 6-min walking distance, pain VAS, pain domain and mobility domain scores determined by the osteoarthritis of the knee outcome measurement, after adjusting for co-variables. However, improvements measured in the study group did not differ significantly from those in the control group." Maa SH, Sun MF, Wu CC. The effectiveness of acupuncture on pain and mobility in patients with osteoarthritis of the knee: a pilot study. J Nurs Res 2008. Report in Focus on Alternative and Complementary Therapies [FACT] (December 2008)