Tokyol Cigdem, Aktepe Fatma, Hüsniye Dilek Fatma, and Yilmazer Mehmet. 2008. “Comparison of Placental PTEN and β1 Integrin Expression in Early Spontaneous Abortion, Early and Late Normal Pregnancy”. Upsala Journal of Medical Sciences 113 (2):235–242. https://doi.org/10.3109/2000-1967-231.