1Grobman WA, Gersnoviez R, Landon MB,etal. Pregancy outcomes for women with placenta previa in relation to the number of prior ce sarean deliveries [J]. Obstet Gyneeol,2007,110(6):1249-1255.
2Silver RM, Landon MB, Rouse D J, et al. Maternal morbidity assoici ated with multiple repeat cesarean deliveries[J]. Obstet Gynecol, 2006,107(6):1226-1232.
3Jenn JT, Chou MM. Differential expression of growth, angiogenesis a nd invasion related factors in the development of placenta acereta[J]. Taiwan Residents J Obstet Gynecol, 2006,45(2):100-106.
4Rosenberg T, Pariente G, Sergienko R. Critical analysis of risk factors and outcome of placenta previa [EB/OL]. http://www. Springer link.com/content/j2xnx153843tp2nh/fulltext. Pdf, 2010-07-06.
7Yinka O, John CS. Placenta previa, placenta accreta and vasa previa [J]. Obstet Gynecol, 2006, 107(4):927-941.
8Comstock CH. Antenatal diagnosis of placenta accreta: a review[J]. Ultrasound Obstet Gynecol, 2005,26(1):89-96.
9Lax A, Prince MR, Mennitt KW, et al. The value of specific MRI fea tures in the evaluation of suspected placental invasion [J]. Magn Re son Imaging, 2007,25:87-93.
5Chou MM. Ho ES, lee YH. Prenatal diagnosis of placenta previa accreta by transabdominal color Doppler ultrasound. Vhrasound obstet Gynecol .2000, 15:28 -35
6Gielehinsky Y, Rojansky N. Fasouliotis SJ et al. placenta accreta -summary of 10 years: a survey of 310 cases, placenta , 2002, 23:210 -214
7O'Brien JM,Barton JR,Donaldson ES.The management of placenta pertreta:conservative and operative strategies[J].Am J Obstet Gynecol,1996,175(6):1632-1638.
8Chou MM,Ho ES.Prenatal diagnosis of placenta previa accreta with power amplitude ultrasonic angiography[J].Am J Obstet Gynecol,1997,177(6):1523-1525.
7Shellhaas CS, Gilbert S, Landon MB, et al. The fi'equency and com- plication rates of hysterectomy accompanying cesarean delivery [ J ]. Obstet Gyneco J,2009,114 ( 2 Pt 1 ) :224 - 229.
8Yinka O, John CS. Placenta previa, placenta accreta and vasa previa [J]. Obstet Gynecol, 2006,107(4) :927 -941.
9Comstock CH. Antenav, d diagnosis of placenta accreta: a review[ J]. Ultrasound Obstet Gynecol, 2005,26 ( 1 ) :89 - 96.
10Gielchinskya Y, Rojansky N, Fasouliotis S J, et al. Placenta acc - reta - summary of 10 years : a survey of 310 cases [ J ]. Placenta, 2002,23 (2 - 3) : 210 - 214.