Shah, K. V., Agrawal, R. H., & Parmar, R. (2022). An observational case control study: study of preterm labour- risk factors and its outcome. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 11(12), 3372–3375. https://doi.org/10.18203/2320-1770.ijrcog20223134