Figure 1. Hemorrhagic stroke-free survival rates for the migraine group (dotted line) and the non-migraine group (solid line).
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.