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1 Non-invasive prenatal diagnosis of fetal trisomy 21 using cell-free fetal DNA in maternal blood
Ji Hyae Lim, So Yeon Park, Hyun Mee Ryu
Obstet Gynecol Sci.2013;56(2):58-66.   Published online 2013 March 12     DOI: http://dx.doi.org/10.5468/OGS.2013.56.2.58
      

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