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.
TOE image at 0°, mid-oesophageal level showing the secundum ASD shunting left to right from the left atrium to the right atrium, as demonstrated by the arrows. LA, left atrium; RA, right atrium; RV, right ventricle.
This work is licensed under a