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. 2020 Mar 26;11:280. doi: 10.3389/fgene.2020.00280

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Copyright © 2020 Xue, Zhao, Qiao, Lu, Yu and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The fetal cfDNA fraction between NIPT retesting and E-Gel-based size-selection NIPT retesting. (A) Fetal cfDNA fraction and fraction growth ratio after E-Gel-based size-selection NIPT. (B) Size peak distribution.