Figure 1.
(a) Comparison of SF PACAP levels between knee OA and controls and (b) Comparison of serum PACAP levels between knee OA and controls.
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.