[1] El-Nashar SA, Paraiso MF, Rodewald K, et al. Laparoscopic cervicoisthmic cerclage: technique and systematic review of the literature[J]. Gynecol Obstet Inves,2013,75(1):1-8. [2] Auger N, Le TU, Park AL,et al. Association between maternal comorbidity and preterm birth by severity and clinical subtype: retrospective cohort study[J].BMC Pregnancy Childbirth,2011,11: 67-71. [3] Anum EA, Brown HL, Jerome F, et al. Health disparities in risk for cervical insufficiency[J].Hum Reprod,2010,25(11):2894-2900. [4] Chifan M, Trnovanu M, Grigore M, et al. Cervical incompetence associated with congenital uterine malformations[J]. Rev Med Chir Soc Med Nat Iasi,2012,116(4):1063-1068. [5] Armarnik S, Sheiner E, Piura B,et al. Obstetric outcome following cervical conization[J].Arch Gynecol Obstet,2011,283(4):765-769. [6] Bocca SM, Abuhamad AZ. Use of 3-Dimensional Sonography toassess Uterine Anomalies[J].J Ultrasound Med,2013.32:1-6. [7] Jolley JA, Wing DA. Pregnancy management after cervical surgery[J].Curr Opin Obstet Gynecol,2008,20(6):528-533. [8] Deutch TD, Abuhamad AZ. The role of 3-dimensional ultrasonography and magnetic resonance imaging in the diagnosis of mullerian duct anomalies: a review of the literature[J]. J Ultrasound Med,2008,27:413-423. [9] Bosteels J, Kasius J, Weyers S, et al. Hysteroscopy for treating subfertility associated with suspected major uterine cavity abnormalities[J]. Cochrane Database Syst Rev,2013,31(1):CD009461. [10] Bauer M, Mazza E, Nava A,et al. In vivo characterization of the mechanics of human uterine cervices[J].Ann N Y Acad Sci,2007,1101:186-202. [11] Schlembach D, Mackay L, Shi L, et al. Cervical ripening and insufficiency: from biochemical and molecular studies to in vivo clinical examination[J].Eur J Obstet Gynecol Reprod Biol,2009,144 (Suppl 1):S70-76. [12] Warren JE, Silver RM, Dalton J, et al. Collagen 1Alpha1 and transforming growth factor-beta polymorphisms in women with cervical insufficiency[J].Obstet Gynecol,2007,110(3):619-624. |