In the acupuncture plus electric stimulation group , acupuncture was supplemented at motor area of Jiao 's scalp acupuncture , lower 2/5 of sensory area , Baihui ( CV 20 ) , Lianquan ( CV 23 ) , Jinjin ( EX-HN 12 ) and Yuye ( EX-HN 13 ) , 30 mm each time .