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.
A plot of estimated average slope and concavity coefficients for placebo treated responders (solid circles) and non-responders (open circles). The vertical line is the placebo-group average slope discriminant criterion (PGASD) boundary between responders and non-responders.
