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Continue to ChatI liked this article on M3 India: Cell-free fetal DNA analysis in maternal plasma as a screening test for trisomy 21, 18 and 13 in twin pregnancies. Have a read: https://www.m3india.in/contents/journal/cell-free-fetal-dna-analysis-in-maternal-plasma?utm_campaign=unset&utm_medium=share&utm_source=ref_wa