Karena, Z.V., Mehta, A.D., Vaghela, H.M. and Shah, H.R. 2022. Prediction of perinatal outcome in high-risk pregnancy by Doppler ultrasound: a prospective cohort study. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 11, 9 (Aug. 2022), 2431–2436. DOI:https://doi.org/10.18203/2320-1770.ijrcog20222306.