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) values of body weight change in morphine implanted, naloxone injected- (solid dots) and placebo implanted, saline injected rats (open dots) at different time points after injection. n = 16/group, p<0.01 compared to time 0.
