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.
Probability of aneurysm rupture based on aneurysm size, as seen in a large prospective cohort of Japanese patients. Reprinted with permission from UCAS Japan Investigators, et al, N Engl J Med.27 © 2012 Massachusetts Medical Society. http://pubs.rsna.org/doi/full/10.1148/radiology.217.2.r00nv06361.
