Fig. 5From: The cerebral mechanism of acupuncture for treating knee osteoarthritis: study protocol for a randomized controlled trialLocations of sham acupoints: NP-3 (sham acupoint 3), 4 cun above the base of the patella and the midpoint between the Spleen Meridian and Stomach Meridian. NP-4 (sham acupoint 4), 4 cun above the base of the patella and the midpoint between the Gallbladder Meridian and Stomach MeridianBack to article page