4Daffos F, Pavlovsks Mc, Forestier F. A new procedure for fetal blood sampling in utero:preliminary results of 53 cases. Am J Obstet Gynecol, 1983,146 : 985-987.
5Maxwell DJ ,Johnson P, Hurley P, er al. Fetal blood sampling and pregnancy loss in relation to indication. Br J Obstet Gynecol, 1991,98(9): 892-897.
8Daffos F, Pavlovsky MC, Forestier F. Fetal blood sampling during pregnancy with use of a needle guided by ultrasound: A study of 606consecutive cases[J]. Am J Obstet Gynecol, 1985, 153: 655-70.
9Maxwell DJ, Johnson P, Hurley P, et al. Fetal blood sampling and pregnancy loss in relation to indication [J]. Br J Obstet Gynecol,1991, 98(9): 892-7.
10Bemaschek G, Yildiz A, Kolankaya A, et al. Complications of cordocentesis in high-risk pregnancies: effects on fetal loss or preterm delivery [ J ]. Prenat Diagn, 1995, 15( 11 ): 995-1000.