%0 Journal Article %T Acupuncture or Acupressure at the Sanyinjiao (SP6) Acupoint for the Treatment of Primary Dysmenorrhea: A Meta-Analysis %A Ma-Na Chen %A Li-Wei Chien %A Chi-Feng Liu %J Evidence-Based Complementary and Alternative Medicine %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/493038 %U http://dx.doi.org/10.1155/2013/493038