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Figure 2: Box-and-whisker plot comparing the number of mast cells in endocervical smears between patients with dysmenorrhea and controls without dysmenorrhea. The number of mast cells in the dysmenorrhea group (n = 34) was significantly higher than the number in the control group (n = 55) (P < 0.0001).

Figure 2: Box-and-whisker plot comparing the number of mast cells in endocervical smears between patients with dysmenorrhea and controls without dysmenorrhea. The number of mast cells in the dysmenorrhea group (<i>n</i> = 34) was significantly higher than the number in the control group (<i>n</i> = 55) (<i>P</i> < 0.0001).