Botta Venkata Satya, K., Atla, B., Prasad, U., Namballa, U., & Prabhakula, S. (2018). A study of placental morphology and correlation with colour doppler ultrasonography, maternal and neonatal outcome in high risk pregnancies. International Journal of Research in Medical Sciences, 6(10), 3364–3369. https://doi.org/10.18203/2320-6012.ijrms20184047