Figure 1.
Summary of the different concepts. The figure briefly shows the main characteristics of the concepts that are reviewed by means of icons, showing the points of convergence in a visual way (see text for explanation).
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.