8Shalev J,Meizner I,Bar-Hava I,et al.Predictive value of transvaginal sonography performed before routine diagnosti chysteroscopy for evaluation of infertility[J].Fertil Steril,2000,73(2):412-417.
9Valenzano M M,Lijoi D,Mistrangelo E,et a1.The value of sonohysterography in detecting intracavitary benign abnormalities[J].Arch Gynecol Obstet,2005,272(4):265-268.