Allanki, S., Mekala, N. M., & Padma, S. (2018). Giant chorioangioma of placenta: a rare placental cause of polyhydramnios. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 8(1), 321–324. https://doi.org/10.18203/2320-1770.ijrcog20185180