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. 2022 Jan 5;601(7893):422–427. doi: 10.1038/s41586-021-04249-w

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Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — a, Cohorts are labelled A–H (Table 1). Circles represent plasma samples from liquid biopsies (n = 2,539). Colours represent the race of the maternal donor. b, Model predictions from the hold-out test (n = 474) using cfRNA transcript data in the Lasso linear model versus ultrasound-predicted gestational age. The dark grey zone represents 1 s.d., and the light grey zone represents 2 s.d. c, Variance explained from ANOVA.