In the combined therapy group , on the basis of the treatment as acupuncture-moxibustion group , the catgut embedding therapy was applied at Feishu ( BL 13 ) , Fengmen ( BL 12 ) , Pishu ( BL 20 ) , Shenshu ( BL 23 ) , Zhongwan ( CV 12 ) and Qihai ( CV 6 ) .