Fig. 2From: Acupuncture as adjunctive therapy for acute renal colic caused by urinary calculi: study protocol for a randomized controlled trialLocations of acupoints and non-acupoints. Red points are the acupoints used in the acupuncture group; green points are the non-acupoints used in the sham acupuncture group. The 16 non-acupoints will be randomly assigned to 8 subgroups. The patients in the sham acupuncture group will be assigned into 1 of these 8 subgroups, and the 2 non-acupoints in this subgroup will be used on this patient in the whole treatment period. NA, non-acupointBack to article page