Acupuncture is a system, based on traditional Chinese medicine, of needling special points on the body to relieve pain or improve well-being.
Comparing the effects of individualized, standard, sham and no acupuncture in the treatment of knee osteoarthritis: a multicenter randomized controlled trial. Kim E-J, Lim C-Y, Lee E-Y, Lee S-D and Kim K-S. Trials. 2013; 14: 129.