Figure 3.
Associated symptoms in patients with new daily persistent headache (NDPH) vs. chronic migraine (CM). * p < 0.01.
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.