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Table 3 Non-acupoints positioning

From: Effect of electroacupuncture on discomfort during gastroscopy: a study protocol for a randomized controlled trial

Acupoints Non-acupoints
Hegu (LI4) 1 cun beside Zhigou (SJ6), between the sanjiao channel and the large intestine channel
Neiguan (PC6) In the middle of the medial epicondyle of the humerus and the styloid process of ulna
Zusanli (ST36) 3 cun below Yanglingquan (GB34), between the gallbladder and bladder meridian
Liangqiu (ST34) 3 cun below Zhongdu (GB32), between the stomach meridian and the gallbladder meridian