Figure The Proporations of Epithelian and Stromal Cells Vary in Endometrial Tissue (image) Estonian Research Council Share Print E-Mail Caption The proportions of epithelial (E) and stromal (S) cells vary in endometrial tissue between early secretory (ESE) and mid-secretory phases of the menstrual cycle. This affects the gene expression profile of the endometrial tissue sample used in the clinical setting for selecting the best day for embryo transfer in infertility treatment. Credit Figure by M. Suhorutšenko Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.