Department of Obstetrics and Gynecology;
Florence Nightingale Kadikoy Hospital;
Istanbul;
Turkey;
Division of Gynecology;
Department of Obstetrics and Gynecology;
University of Texas Medical Branch;
Galveston;
USA;
Istanbul Bilim University;
Institute of Health Sciences;
Department of Histology & Embryology;
Istanbul;
Turkey;
Ishikawa; cells; 17-β-estradiol; Progesterone; hCG; P53; P21; Endometrium;