![Screening for Down syndrome in the second trimester of pregnancy]()
Screening for Down syndrome in the second trimester of pregnancyO'Leary, Peter; Maxwell, Susannah; Sinosich, Michael; DeVoss, Kerry; Fletcher, Janice; Ranieri, Enzo; Metz, Michael P. · Australian and New Zealand Journal of Obstetrics and Gynaecology · 2016