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
SARS-CoV-2 and Pregnancy: A Review of the Facts.
Czeresnia Ricardo Mamber et al. Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia 2020 Sep 42(9) 562-568