Fig 2. Minimum number of SPA sessions attended.
Bars show the number of treated clients attending none, or at least the stated number of sessions.
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.