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. 2019 Apr 10;48(4):1051–1051k. doi: 10.1093/ije/dyz056

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© The Author(s) 2019. Published by Oxford University Press on behalf of the International Epidemiological Association.

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

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Figure 3. — Map of studies participating in DynaHEALTH (sample size in brackets) by country. The size of the circle indicates the relative size of the study. Red arrows and stars show the participating centres of the multinational CHOP study.