References
- Bishop EH. 1964. Pelvic scoring for elective induction. Obstetrics and Gynecology 24:266–268.
- Chandra S, Crane JM, Hutchens D, Young DC. 2001. Transvaginal ultrasound and digital examination in predicting successful labor induction. Obstetrics and Gynecology 98:2–6.
- Goldberg J, Newman RB, Rust PF. 1997. Interobserver reliability of digital and endovaginal ultrasonographic measurements. American Journal of Obstetrics and Gynecology 177:853–858.
- Hannah ME, Hannah WJ, Hellmann J, Hewson S, Milner R, Willan A. 1992. Induction of labor as compared with serial antenatal monitoring in post-term pregnancy: a randomized controlled trial. New England Journal of Medicine 326:1587–1592.
- Hendrix NW, Chauhan SP, Morrison JC, Magnan EF, Martin JN Jr, Devoe LD. 1998. Bishop score: a poor diagnostic test to predict failed induction versus vaginal delivery. Southern Medical Journal 91:248–252.
- Keepanasseril A, Suri V, Bagga R, Aggarwal N. 2007. Pre-induction sonographic assessment of the cervix in the prediction of successful induction of labour in nulliparous women. Australian and New Zealand Journal of Obstetrics and Gynaecology 47:389–393.
- Pandis GK, Papageorghiou AT, Ramanathan VG, Thompson MO, Nicolaides KH. 2001. Preinduction sonographic measurement of cervical length in the prediction of successful induction labor. Ultrasound in Obstetrics and Gynecology 18:623–628.
- Rane SM, Pandis GK, Guirgis RR, Higgins B, Nicolaides KH. 2004. The value of Ultrasound in the prediction of successful induction. Ultrasound in Obstetrics and Gynecology 24:538–549.
- Rane SM, Guirgis RR, Higgins B, Nicolaides KH. 2005. Models for the prediction of successful induction of labor based on pre-induction sonographic measurement of cervical length. Journal of Maternal-Fetal and Neonatal Medicine 17:315–322.
- RCOG. 2001. Induction of labor. Evidence-based Clinical Guideline No. 9. London: RCOG Clinical Support Unit.
- Rozenberg P, Chevret S, Chastang C, Ville Y. 2005. Comparison of digital and ultrasonographic examination of the cervix in predicting the time interval from the induction to delivery in women with a low bishop score. British Journal of Obstetrics and Gynaecology 112:192–196.
- Roman H, Verspyck E, Vercoustre L, Degre S, Col JY, Firmin JM . 2004. Does the ultrasound examination when the cervix is unfavorable improve the prediction of failed labor induction? Ultrasound in Obstetrics and Gynecology 23:357–362.
- Yang SH, Roh CR, Kim JH. 2004. Transvaginal ultrasonography for cervical assessment before induction of labor. Journal of Ultrasound in Medicine 23:375–382.