The change of the pressure(amplitude of vibration,frequency) of the pylorus sphincter was observed with the technique of endoscopy measurement of pressure by needling the points of Foot Yangming channel,Neiting,Xiangu,Chengyang,Jiexi,Zusanli,Liangqiu,and their left and right control points.The results showed that stimulating channel line could increase the pressure and needling the control points(line) did not cause obvious c...