Resolution: standard / high
Figure 4.
Indicator semivariograms (1 = present, 0 = absent) of the geographic distributions
of Ehrlichia chaffeensis and Anaplasma phagocytophilum.
Wimberly et al. International Journal of Health Geographics 2008 7:15 doi:10.1186/1476-072X-7-15
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