Evidence-Based Complementary and Alternative Medicine / 2012 / Article / Fig 12

Research Article

Effects of Somatothermal Far-Infrared Ray on Primary Dysmenorrhea: A Pilot Study

Figure 12

The NRS scores on the first three days of menstruation. The symbols * and ** indicate a significant and highly significant difference between groups using the Wilcoxon Signed-Rank Test, respectively.