Botta Venkata Satya, K.; Atla, B.; Prasad, U.; Namballa, U.; Prabhakula, S. A Study of Placental Morphology and Correlation With Colour Doppler Ultrasonography, Maternal and Neonatal Outcome in High Risk Pregnancies. Int J Res Med Sci 2018, 6, 3364-3369.