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. 2019 Oct 18;127(10):105001. doi: 10.1289/EHP5496

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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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A world map illustrates the unique country, source, and years of data on blood lead levels. The key is as follows: unique location/years: 0 to 1, 1 to 5, 5 to 10, 10 to 15, 15 to 20, 20 to 25, 25 to 30, 35 to 40, and 40 to 95. — Map of unique country, source, and years of data on blood lead levels for the Global Burden of Disease Study (GBD) (Stanaway et al. 2018).