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.
Mean (± SEM) number of active lever presses, inactive lever presses and infusion average across the last five cocaine self-administration sessions for all rats separated into groups according to the dose of (−)-stepholidine they would later be treated with (during reinstatement test).
