Figure 6From: Spatial variations in the incidence of breast cancer and potential risks associated with soil dioxin contamination in Midland, Saginaw, and Bay Counties, Michigan, USA Breast cancer cases per 100,000 females, space-time clusters, and point source pollution sites. Space-time clusters detected by Kulldorff's space-time scan statistic (shaded areas) and the genetic algorithm for space-time clustering (ellipses).Back to article page