Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The color-scale from low blue (equal to 1) to red (equal to 8) displays the number of patients resident within a range of 500 meters from each considered point on the map of the area under study. Data from OpenStreetMap visualisation.
