Tokyol , C., Aktepe , F., Hüsniye Dilek , F. and Yilmazer , M. 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 (Jul. 2008), 235–242. DOI:https://doi.org/10.3109/2000-1967-231.