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, Sequestered area where ABI screening took place. B, Method of ABI measurement using automated oscillometric device. ABI was subsequently measured using the criterion standard continuous wave Doppler method. ABI indicates ankle–brachial index.
