Figure 1From: Variations in societal characteristics of spatial disease clusters: examples of colon, lung and breast cancer in JapanDistribution of societal clusters. (a) Map of Japan. (b) Municipalities are classified into four societal clusters (SCs) according to two societal indices (high unemployment and overcorwing and high income and educational level: see Table 1) and popualtion density. The characeritics of clusters are shown in Table 2.Back to article page