Nair, V., Srivastava, A. and Tangri, M. (2016) “Obstetric outcome in sonologically short cervix: a prospective observational study”, International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 5(12), pp. 4351–4355. doi: 10.18203/2320-1770.ijrcog20164341.