Fig. 2

The correlation between changes in the number of headache days per month and serum levels of Treg/Th17 related cytokines throughout the 12-week trial. a The correlation between changes in the number of headache days per month and serum levels of TGF-β throughout the 12-week trial. b. The correlation between changes in the number of headache days per month and serum levels of IL-17 throughout the 12-week trial