Khalifa, M. A., Abbas, A. M., Gaber, M. A., & Salah, M. (2018). Bishop score versus transvaginal ultrasonographic measurement of cervical length in predicting successful labor induction in post-term pregnancy: prospective cohort study. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 7(11), 4646–4651. https://doi.org/10.18203/2320-1770.ijrcog20184523