3Hasegawa J, Farina A, Nakamura M,et al. Analysis of the ultrasonographic findings predictive of vasa previa [J]. Prenat Diagn ,2010,30 ( 12-13 ) : 1121-1125.
4Mabuchi Y, Yamoto M, Minami S. Two cases of vasa previa di- agnosed prenatally using three-dimensional ultrasonography [ J]. J Clin Ultrasound, 2010,38(7) :389-392.
5Nomiyama M, Toyota Y, Kawano H. Antenatal diagnosis of velamentous umbilical cord insertion and vasa previa with color Doppler imaging [ J ]. Ultrasound Obstet Gynecol, 1998, 12 : 426-429.
6Oyelese Y. Placenta previa and vasa previa: time to leave the Dark Ages[J]. Uhrasound Obstet Gynecol,2001,18: 96-99.
7Kikuchi A, Uemura R, Serikawa T,et al. Clinical significances of magnetic resonance imaging in prenatal diagnosis of vasa previa in a woman with bilobed placentas [J]. J Obstet Gynaecol Res, 2011,37 ( 1 ) :75-78.
8Oyelese Y, Catanzarite V, Prefumo F, et al. Vasa previa: the impact of prenatal diagnosis on outcomes [ J ]. Obstet Gynecol, 2004,103 ( 1 ) :937-942.
9Smorgick N, Tovbin Y, Ushakov F, et al. Is neonatal risk from vasa previa preventable? The 20-year experience from a single medical center [J]. J Clin Ultrasound,2010,38 (3) : 118-122.
10Ioannou C, Wayne C. Diagnosis and management of vasa previa : a questionnaire survey [ J ]. Ultrasound Obstet Gynecol,2010,35 (2) :205-209.
