Saichandran, Sabita, Arthy Arun, Sunita Samal, and Pallavee Palai. 2017. “Efficacy and Safety of Serial Membrane Sweeping to Prevent Post Term Pregnancy: A Randomised Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 4 (6):1882-86. https://doi.org/10.18203/2320-1770.ijrcog20151279.