1.
Fan D, Wu S, Liu L, et al. Prevalence of antepartum hemorrhagein women with placenta previa: a systematic review and meta-analysis. Scientific Reports. 2017;7(1):40320.
2.
Shin JE, Shin JC, Lee Y, Kim SJ. Serial change in cervical length forthe prediction of emergency cesarean section in placenta previa.PLoS One. 2016;11(2):e0149036.
3.
Hasegawa J, Higashi M, Takahashi S, et al. Can ultrasonography ofthe placenta previa predict antenatal bleeding?. J Clin Ultrasound.2011;39(8):458-462. doi:10.1002/jcu.20849
4.
Cresswell JA, Ronsmans C, Calvert C, Filippi V. Prevalence ofplacenta praevia by world region: a systematic review and meta-analysis. Tropic Med Int Health. 2013;18(6):712-724.
5.
Cunningham FG, Leveno KL, Bloom SL, et al. Obstetricalhemorrhage. In: Cunningham FG, Leveno KL, Bloom SL, et al. eds.Williams Obstetrics, 23rd ed. New York: McGraw-Hill; 2010, chap 35.
6.
Getahun D, Oyelese Y, Salihu HM, Ananth CV. Previous cesareandelivery and risks of placenta previa and placental abruption.Obstet Gynecol. 2006;107(4):771-778.
7.
Gilliam M, Rosenberg D, Davis F. The likelihood of placentaprevia with greater number of cesarean deliveries and higherparity. Obstet Gynecol. 2002;99(6):976-980.
8.
Iams JD, Goldenberg RL, Meis PJ, et al. The length of the cervixand the risk of spontaneous premature delivery. N Engl J Med.1996;334(9):567-573.
9.
Lim AC, Hegeman MA, Huis In ‘T Veld M, Opmeer B, Bruinse H,Mol B. Cervical length measurement for the prediction of pretermbirth in multiple pregnancies: a systematic review and bivariatemeta-analysis. Ultrasound Obstet Gynecol. 2011;38(1):10-17.
10.
Sekiguchi A, Nakai A, Okuda N, Inde Y, Takeshita T. Consecutivecervical length measurements as a predictor of pretermcesarean section in complete placenta previa. J Clin Ultrasound.2015;43(1):17-22. doi:10.1002/jcu.22205
11.
Fukushima K, Fujiwara A, Anami A, et al. Cervical length predictsplacental adherence and massive hemorrhage in placenta previa.J Obstet Gynaecol Res. 2012;38(1):192-197. doi:10.1111/j.1447-0756.2011.01669.x
12.
Altraigey A, Ellaithy M, Barakat E, Majeed A. Cervical lengthshould be measured for women with placenta previa: cohortstudy. J Matern Fetal Neonatal Med. 2021;34(13):2124-2131. doi:10.1080/14767058.2019.1659239
13.
Taipale P, Hiilesmaa V. Sonographic measurement of uterinecervix at 18-22 weeks’ gestation and the risk of preterm delivery.Obstet Gynecol. 1998;92(6):902-907.
14.
Ghi T, Contro E, Martina T, et al. Cervical length and risk ofantepartum bleeding in women with complete placenta previa.Ultrasound Obstet Gynecol. 2009;33(2):209-212.
15.
Obstetricians ACo, Gynecologists. Prediction and prevention ofspontaneous preterm birth: ACOG Practice Bulletin, Number234. Obstetr Gynecol. 2021;138(2):e65-e90.
16.
Mimura T, Hasegawa J, Nakamura M, et al. Correlation betweenthe cervical length and the amount of bleeding during cesareansection in placenta previa. J Obstet Gynaecol Res. 2011;37(7):830-835. doi:10.1111/j.1447-0756.2010.01446.x
17.
Hessami K, Mitts M, Zargarzadeh N, Jamali M, Berghella V,Shamshirsaz AA. Ultrasonographic cervical length assessmentin pregnancies with placenta previa and risk of perinatal adverseoutcomes: A systematic review and meta-analysis. Am J ObstetGynecol MFM. doi:10.1016/j.ajogmf.2023.101172
18.
Rosenberg T, Pariente G, Sergienko R, Wiznitzer A, Sheiner E.Critical analysis of risk factors and outcome of placenta previa.Archives Gynecol Obstet. 2011;284:47-51.
19.
Zaitoun MM, El Behery MM, Abd El Hameed AA, SolimanBS. Does cervical length and the lower placental edge thicknessmeasurement correlates with clinical outcome in cases of completeplacenta previa? Archives Gynecol Obstet. 2011;284:867-873.
20.
Stafford IA, Dashe JS, Shivvers SA, Alexander JM, McIntireDD, Leveno KJ. Ultrasonographic cervical length and risk ofhemorrhage in pregnancies with placenta previa. Obstet Gynecol.2010;116(3):595-600.