W. B., Anu Bhargavi, Sailatha R., and Anuradha C. R. 2021. “Changing Trends of Causative Factors in Antenatal Mothers With Bad Obstetric History: A Retrospective Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 10 (9):3371-74. https://doi.org/10.18203/2320-1770.ijrcog20213452.