A. S. Ali, M. Hussein, A. N. Fetih, A. M. Ahmed, and A. M. Abbas, “Prediction of preterm birth by evaluating the fetal adrenal gland volume and blood flow: a pilot study”, Int J Reprod Contracept Obstet Gynecol, vol. 7, no. 10, pp. 3906–3910, Sep. 2018.