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.
GDX females: effects of steroid hormone replacement on morphine antinociception on the 50°C hotplate test. Each point is the mean ± 1 SEM of eight to eleven rats. For treatment group abbreviations see Table 2; only low dose E2 group is shown.
