J. Yadav, M. Shukla, P. K. Jain, and D. Kumar, “Role of umbilical artery Doppler velocimetry in predicting the adverse perinatal outcomes in hypertensive disorder of pregnancy”, Int J Reprod Contracept Obstet Gynecol, vol. 6, no. 10, pp. 4382–4388, Sep. 2017.