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Expanded conventional first trimester screening.
Carmichael JB, Liu HP, Janik D, Hallahan TW, Nicolaides KH, Krantz DA. Carmichael JB, et al. Among authors: liu hp. Prenat Diagn. 2017 Aug;37(8):802-807. doi: 10.1002/pd.5090. Epub 2017 Jul 18. Prenat Diagn. 2017. PMID: 28613385 Free PMC article.