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. 2021 Jul 26;10(15):e021477. doi: 10.1161/JAHA.121.021477

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© 2021 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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The line represents the median placental‐derived cfDNA fraction and interquartile range.