Authors: Lo, YMD Lau, TK Zhang, J Leung, TN Chang, AMZ Hjelm, NM Elmes, RS Bianchi, DW

Citation: Ymd. Lo et al., Increased fetal DNA concentrations in the plasma of pregnant women carrying fetuses with trisomy 21, CLIN CHEM, 45(10), 1999, pp. 1747-1751