Integrated and first trimester prenatal screening in California: program implementation and patient choice for followup services
Antenatal Screening for Down Syndrome Using Serum Placental Growth Factor with the Combined, Quadruple, Serum Integrated and Integrated Tests | PLOS ONE
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Table 2 from Single-Step Maternal Serum Screening for Trisomy 21 in the Era of Combined or Integrated Screening | Semantic Scholar
The triple test as a screening technique for Down syndrome: reliability and relevance. - Document - Gale Academic OneFile
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