Apologies that this cut out at 60min! (She talked for 80min total) follow the links below for some more helpful tips https://www.theatlantic.com/magazine/archive/2020/12/the-last-children-of-down-syndrome/616928/

https://ranzcog.edu.au/RANZCOG_SITE/media/RANZCOG-MEDIA/Women%27s%20Health/Statement%20and%20guidelines/Clinical-Obstetrics/Prenatal-screening_1.pdf?ext=.pdf

https://pubmed.ncbi.nlm.nih.gov/25358606/

https://raisingchildren.net.au/disability/guide-to-disabilities/assessment-diagnosis/down-syndrome

https://www.youtube.com/watch?v=Z5TtopYX1Gc (sensitivity and specificity)