Detection of triploidy at 11-14 weeks of gestation: a cohort study of 198,000 pregnant women

Line Engelbrechtsen, Karen Brøndum-Nielsen, Charlotte Ekelund, Ann Tabor, Lillian Skibsted, the Danish Fetal Medicine study group, Richard Farlie, Eva Hoseth, Torben Larsen, Olav Bjørn Petersen, Inger Stornes, Lars O. Vejerslev, Helle Zingenberg