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Venn diagram containing peripheral blood immune cells and embryo biopsy in RIF, RAR, and infertile patients. Caption: Immune cells from different types of collection. In blue: increase in cell quantity. In pink: Reduction of cell quantity. A: Peripheral blood immune cells. B: Immune cells derived from embryonic biopsies. C: Just enlarged cells between the two collection types. D: Just reduced cells between the two collection types.
