1Giacalone PL,Laffargue F,AligierN,et al.Randomized study comparing two techniques of conization:cold knife versus loop excision.Gynecol Oncol,1999,75:356-360.
2Ardyn M,Kyrgiou M,Simoens C,et al.Perinatalmortality and other severe adverse pregnancy outcomes associated with treatment of cervica-1 intraepithelial neoplasia:metaan alysis.BMJ,2008,337:a1284.