Malhotra, Khushboo, Archana Kumari, and H. P. Anand. “Comparison of Modified Biophysical Profile and Doppler Ultrasound in Prediction of Perinatal Outcome in High-Risk Pregnancies”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 9, no. 7 (June 25, 2020): 2808–2812. Accessed October 16, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/8476.