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. 2019 Sep 10;59(5):2219–2228. doi: 10.1007/s00394-019-02072-8

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© The Author(s) 2019

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.

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Fig. 1 — Flowchart showing selection of study participants from the Norwegian Mother and Child Cohort Study (MoBa)