Salma Samy Abdellateef (2018) “Assessment of Maternal Nifedipine as a Tocolytic Agent on the Doppler Indices of Uterine and Fetal Umbilical and Middle Cerebral Arteries ”, Gynecology and Obstetrics Research, 4(2), pp. 44–49. doi: 10.17140/GOROJ-4-144.