3RaioL,Ghezzi F,Di Naro E,et al. Duration of pregnancy after carbon dioxide laser conization of the cervix : Influence of coneheight obstet Gynecol, 1997,90:978. 被引量:1
4Groom KM, ShennanAH, BennettP R: Ultrasound indicated cerival cerclage: Oatcome depends on preoperative cervical length and presence of visible nembranes at time of cerclage[ J ]. Am J Obstet Gynecol,2002,187:445 - 449. 被引量:1