Maheshwari, R., Verma, A. and Gupta, A. (2022) “Analysis of clinico-sonological parameters of women with preterm pregnancy with complaint of lower abdominal pain”, International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 11(10), pp. 2770–2774. doi: 10.18203/2320-1770.ijrcog20222476.