2Osser OV, Jokubkiene L, Valentin 1. High prevalence of defects in Cesarean section scars at transvaginal ultrasound examination[J]. Ultrasound Obstet Gynecol, 2009, 34[J]: 90-97.
3Bij de Vaate AJ, Brolmann HA. van der Voet LF, et a1. Ultrasound evaluation of the Cesarean scar: relation between a niche and postmenstrual spotting[J]. Ultrasound Obstet Gynecol, 2011, 37[J]: 93-99.
4Zimmer EZ. Bardin R, Tamir A, et a1. Sonographic imaging of cervical scars after Cesarean section[J]. Ultrasound Obstet Gynecol, 2004, 23(6): 594-598.
5Naji 0, Abdallah Y, Bij De Vaate AJ, et a1. Standardized approach for imaging and measuring Cesarean section scars USing ultrasonography[J]. Ultrasound Obstet Gynecol, 2012, 39(3): 252-259.
6Roberge S, Boutin A, Chaillet N, et a1. Systematic review of cesarean scar assessment in the nonpregnant state: imaging techniques and uterine scar defect[J]. Am J Perinatol, 2012, 29(6): 465-471.
7Monteagudo A, Carreno C, Timor-Tritsch IE. Saline infusion sonohysterography in nonpregnant women with previous cesarean delivery: the "niche" in the scar[J]. J Ultrasound Med, 2001, 20(JO): ll05-11l5.
8Wang CB, Chiu WW, Lee CY, et a1. Cesarean scar defect: correlation between Cesarean section number, defect size, clinical symptoms and uterine position[J]. Ultrasound Obstet Gynecol, 2009, 34(1): 85-89.
9Osser OV, Jokubkiene L, Valentin 1. Cesarean section scar defects: agreement between transvaginal sonographic findings with and without saline contrast enhancement[J]. Ultrasound Obstet Gynecol, 2010, 35[J]: 75-83.
10Ofili- Yebovi D, Ben-Nagi J, Sawyer E, et a1. Deficient lower-segment Cesarean section scars: prevalence and risk factors[J]. Ultrasound Obstet Gynecol, 2008, 31 (I): 72-77.
