Natu, N., Sonker, S., Chandwaskar, N. and Agrawal, S. 2017. Role of oral micronized progesterone versus vaginal progesterone for prevention of preterm labour. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 6, 5 (Apr. 2017), 1797–1799. DOI:https://doi.org/10.18203/2320-1770.ijrcog20171532.