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Elastic fibers in the placental villi from women with CVD during pregnancy. (A) IRS for orcein stain. Representative images showing the orcein staining in the placental villi and decidual cells from women with (B and C) CVD and from those in the (D and E) HC group, respectively. Data are expressed as the median and interquartile range; *P<0.05. CVD, chronic venous disease; HC, healthy controls; IRS, immunoreactive score.
