%0 Journal Article %T False positive non-invasive prenatal testing (NIPT) for trisomy 21 in vanishing twin syndrome pregnancy: A comparison of the NIPT results performed in different gestations. %A Chen CP %J Taiwan J Obstet Gynecol %V 62 %N 6 %D 2023 11 %M 38008520 %F 1.944 %R 10.1016/j.tjog.2023.09.009