@article{Söylemez2014_163918, author={Feride Söylemez and Salih TAŞKIN and alper kahraman and Esra Ozkavukcu and Fırat Tülek}, title={Changes in first trimester screening test parameters in pregnancies complicated by placenta previa and association with hyperemesis gravidarum}, year={2014}, journal={Journal of the Turkish-German Gynecological Association}, issn={1309-0399}, volume={15}, number={4}, url={http://search/yayin/detay/163918} }