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Analysis of stimulatory receptor expression on peripheral blood NK cells. (A) Flow dot plots represent the expression of stimulatory receptors NKG2D, NKp30, and NKp46. Numbers indicate the percentage of cells in the boxed area. Plots showing the difference in the frequency of NKG2D+(B), NKp30+(C), and NKp46+(D) NK cells between fertile controls (black) and women with RIF (gray). Small horizontal bars indicate mean ± SD. Groups were compared using the independent t test.
