Arora, R., Punia, N. and Kumari, A. (2017) “Fetal colon diameter as a tool for estimating gestational age in advanced pregnancy in north Indian population: a pilot study”, International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 5(5), pp. 1577–1581. doi: 10.18203/2320-1770.ijrcog20161328.