['To analyze concentrations of endometrial leukocytes in patients with idiopathic-repeated abortions.', 'Biopsies of exactly dated secretory endometrium in 25 patients with idiopathic-repeated abortions and 10 control patients without a history of miscarriage were compared with respect to the concentrations of T-helper cells (CD4), cytotoxic T-cells (CD8), B-cells (CD19) and uterine natural killer cells (CD56) by immunohistochemistry and RNase protection assays.', 'All examined cells were detectable within secretory endometrium. No statistically significant differences of the examined immune-cell concentrations were seen between the control group and the repeated miscarriage group by either test.'] Are specific secretory phase endometrial leukocytes of women with two and more consecutive idiopathic abortions significantly different from healthy controls?