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. 2020 May 15;128(5):057005. doi: 10.1289/EHP7200

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EHP is an open-access journal published with support from the National Institute of Environmental Health Sciences, National Institutes of Health. All content is public domain unless otherwise noted.

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Figure 1 is a world map titled number of input data sources by country and territory, displaying five groups of unique sources, namely, 1 to 3, 3 to 5, 5 to 7, 7 to 9, and 9 to 11. — Number of input data sources by country and territory, 2019. See Excel Table S1 for input data sources and Excel Table S2 for corresponding numeric data.