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.
(a) Frequency distribution of emergency CAS patients. CAS indicates Carotid artery stenting. (b) Two-year frequency distribution of elective CAS patients. CAS indicates Carotid artery stenting. Note: Nine patients underwent CAS between two to ten years after symptoms onset, which are not shown.
