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. Author manuscript; available in PMC: 2011 Sep 15.
Published in final edited form as: Trop Med Int Health. 2006 Aug;11(8):1318–1326. doi: 10.1111/j.1365-3156.2006.01681.x

Figure 1.

Figure 1

Environmental distance from the INDEPTH DSS network in Africa. Yellow represents the lowest through red the highest values with a vertical exaggeration applied to emphasise the differences. Areas with population densities of <1 person per km2 have been masked in grey.