Figure 1.
The GSAn method workflow. Steps are represented in dark grey (orange in the electronic version) rectangles while their input and output are displayed as gray rectangles.
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.