Soundarajan, P., Muthuramu, P., Veerapandi, M. and Mariappan, R. 2017. Retrospective study factors related to preterm birth in Government Raja Mirasudar hospital and obstetric and perinatal outcome. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 5, 9 (Feb. 2017), 3006–3010. DOI:https://doi.org/10.18203/2320-1770.ijrcog20162974.