Figure 4-a Mean Gini coefficients of all physicians in intra-prefectural distributions: Prefectures were classified into urban and rural according to the population density.

<p><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0077045#pone-0077045-g004" target="_blank">Figure 4</a>-b Mean Gini coefficients of pediatricians in intra-prefectural distributions; Prefectures were classified into urban and rural according to the population density.