Search for hemodynamic compromise at 11–14 weeks in monochorionic twin pregnancy: Is abnormal flow in the ductus venosus predictive of twin–twin transfusion syndrome?

10.1097/00003081-199706000-00006

10.1375/twin.3.2.65

10.1046/j.1469-0705.1997.10020086.x

10.1093/humrep/15.9.2008

10.1046/j.1469-0705.1997.10040265.x

10.1046/j.1469-0705.1998.11030209.x

10.1046/j.1469-0705.1998.12060380.x

10.1159/000020817

10.1046/j.1469-0705.1999.14050307.x

10.1016/S0140-6736(97)11280-6

European Committee for Ultrasound Radiation Safety, 1996, Eur J Ultrasound, 4, 145, 10.1016/S0929-8266(96)90008-7

10.1016/S0301-5629(96)00202-5

10.1056/NEJM197306142882406

10.1016/0002-9378(95)90011-X

Kiserud T, 1993, J Matern Fetal Invest, 3, 15

10.1046/j.1469-0705.1994.04020109.x

10.1046/j.1469-0705.1995.05050318.x

10.1136/hrt.72.1.74

10.1136/heart.88.3.271

10.1016/0029-7844(95)00486-6