Pal, D., Bhagat, N., & Arora, R. (2019). Risk factors and outcome of placenta previa: accrete in a tertiary health care center of Punjab, India. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 8(2), 658–664. https://doi.org/10.18203/2320-1770.ijrcog20190301