Fig. 2From: Histological endometrial dating: a reliable tool for personalized frozen-thawed embryo transfer in patients with repeated implantation failure in natural cycles H&E staining of endometrial biopsy tissues on PO + 7. Histological endometrial-dating analysis showed patient endometrium to be dated + 4 in both 2017 (A) and 2020 (B)Back to article page