In the EA group , the selected acupoints were Danzhong ( CV 17 ) , Qimen ( LR 14 ) , Zhongwan ( CV 12 ) , Tianshu ( ST 25 ) , Guanyuan ( CV 4 ) , Zigong ( EX-CA 1 ) , Sanyinjiao ( SP 6 ) , Zusanli ( ST 36 ) and Taichong ( LR 3 ) , etc. .