The role of the first trimester screen in the face of normal cell free DNA.
Strauss Tirtza Spiegel et al. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians 2022 1-6
First-trimester screening-biomarkers and cell-free DNA.
Suciu Ioan et al. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians 2019 Nov 1-171