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Figure 1.
Administrative 1 unit boundary maps of Africa showing: a) the distribution of night time lights for the year 2000; b) availability of assets data for 338 units in 37 countries. The maps also show areas of zero population density derived from GRUMP surface.
Noor et al. Population Health Metrics 2008 6:5 doi:10.1186/1478-7954-6-5
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