Ugurlu, E. Et Al. 2009. The value of vascular endothelial growth factor, pregnancy-associated plasma protein-A, and progesterone for early differentiation of ectopic pregnancies, normal intrauterine pregnancies, and spontaneous miscarriages.. Fertility and sterility , vol.91 , 1657-61.

Ugurlu, E., Ozaksit, G., Karaer, A., Zulfikaroglu, E., Atalay, A., & Ugur, M., (2009). The value of vascular endothelial growth factor, pregnancy-associated plasma protein-A, and progesterone for early differentiation of ectopic pregnancies, normal intrauterine pregnancies, and spontaneous miscarriages.. Fertility and sterility , vol.91, 1657-61.

Ugurlu, EN Et Al. "The value of vascular endothelial growth factor, pregnancy-associated plasma protein-A, and progesterone for early differentiation of ectopic pregnancies, normal intrauterine pregnancies, and spontaneous miscarriages.," Fertility and sterility , vol.91, 1657-61, 2009

Ugurlu, EN Et Al. "The value of vascular endothelial growth factor, pregnancy-associated plasma protein-A, and progesterone for early differentiation of ectopic pregnancies, normal intrauterine pregnancies, and spontaneous miscarriages.." Fertility and sterility , vol.91, pp.1657-61, 2009

Ugurlu, E. Et Al. (2009) . "The value of vascular endothelial growth factor, pregnancy-associated plasma protein-A, and progesterone for early differentiation of ectopic pregnancies, normal intrauterine pregnancies, and spontaneous miscarriages.." Fertility and sterility , vol.91, pp.1657-61.

@article{article, author={EN Ugurlu Et Al. }, title={The value of vascular endothelial growth factor, pregnancy-associated plasma protein-A, and progesterone for early differentiation of ectopic pregnancies, normal intrauterine pregnancies, and spontaneous miscarriages.}, journal={Fertility and sterility}, year=2009, pages={1657-61} }