Figure 1.
Electron microscopy of CA1 area of hippocampus: (a) control, (b) placebo group, and (c) and (d) morphine treated group (magnification: ×50000, scale bar: 0.5 μm).
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.