Map of Japan showing the study area.

Abstract

<p>A choropleth map of 46 Japanese administrative areas (prefectures) showing the origin of the purchased domestic chicken products and the quantity of products supplied from each prefecture. The origin of 82 domestic products (52.6%) was unavailable and is not shown. The superimposed points show the locations of the 5 Japanese cities where chicken products were purchased between July and August 2012.</p