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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Environ Res. 2011 Apr 29;111(5):677–684. doi: 10.1016/j.envres.2011.04.004

Figure 1.

Figure 1

Map of land-use categories with 30m×30m resolution and approximate residential locations of study subjects, and a buffer distance of 1,540m from the resident.