Two maps of North America with a focus on the United States of America. It shows the borders of each county. Each county is filled in with different shades on a gradient from grey to green. The map on the left is titled "20 mg - Mallinckrodt" and the map on the right is titled "20mg - Other Manufacturers". Under each title there is a disclaimer that reads "(Extended Units from a sample database covering roughly 65% of retail transactions. Data is not projected.)" A key shows that the color represents extended units per capita with grey indicating 0 units and the darkest color green indicating up to 2000 units for the map on the left and 1000 units for the map on the right. A footer on the map indicates that the graphic was created in Tableau.
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2013
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