Fig. 2
From: Optimal allocation of physicians improves accessibility and workload disparities in stroke care
Changes in potential crowdedness index (x-axis) and mean current potential crowdedness index (y-axis) for 47 prefectures. Prefectures were divided into three groups based on the percentage of the population living in Densely Inhabited Districts. The higher the percentage, the more urbanized the area. The top 25% was defined as high, the bottom 25% as low, and the others as medium