Fig. 2From: Comparison of the efficacy between conventional moxibustion and smoke-free moxibustion on knee osteoarthritis: study protocol of a randomized controlled trialAcupoints used in the trial. The lines refer to the acupoints Dubi (ST35) and Zusanli (ST36) on the lateral side of the knee and Neixiyan (EX-LE4) on the medial side of the kneeBack to article page