Paliwal, S., R. Shaheen, S. Paliwal, P. Parakh, K. Yadav, G. Chaudhary, and J. Jalandhara. “Comparative Role of Non-Stress Test and Colour Doppler in High Risk Pregnancy Predicted by Placental Histopathology and Foetal Outcome”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 6, no. 4, Mar. 2017, pp. 1444-8, doi:10.18203/2320-1770.ijrcog20171407.