FIGURE 1 from Longitudinal Position and Cancer Risk in the United States Revisited

Map of relative position and cancer incidence. Figure shows maps of PTZ and cancer incidence rate by county for 607 and 2,853 counties (observations), respectively. A, Map of PTZ for 607 counties. B, Map of PTZ for 2,853 counties. C, Map of U.S. cancer incidence rate for 607 counties. D, Map of U.S. cancer incidence rate for 2,853 counties.