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. 2019 Feb 8;127(2):027001. doi: 10.1289/EHP1229

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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 1a is a map of the USA marking participant addresses and Figure 1b is a map of the USA marking July 2000 NDVI, high: 1.0, and low: −0.2. — (A) Nurses’ Health Study addresses at baseline (2000); (B) Normalized Difference Vegetation Index (NDVI). Values based on 1 July 2000 MODIS satellite data.