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Cytotoxic molecule expression by peripheral blood NK cells. (A) Representative flow cytometry plots of NK cells. (B) The percentage of peripheral NK cells in fertile controls and women with RIF. (C) Representative flow cytometry plots of granzyme B+, granulysin+, and perforin+ NK cells. Percentages of granzyme B+(D), granulysin+(E), and perforin+(F) NK cells are shown for fertile controls and women with RIF. Data are mean ± SD. Groups were compared using the independent t test.
