Self-massage with Enzyme-rich Ginger Oil in the Treatment of Primary Dysmenorrhea:a Randomized,Double-blind,Controlled Clinical Trial 
DENG Yun,YI Wei,YE Xiaoxin,ZHANG Lu,XU Zhirui,WU Danna,LI Zhaoxia,LIN Xiaoyang,GUO Shuailiang
Chinese General Practice . 2019, (19): 2388 -2392 .  DOI: 10.12114/j.issn.1007-9572.2019.00.134