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.
Affected valves show small areas of coagulation necrosis (consistent with RFA injury), labeled by arrows A, and surrounding fibroblastic proliferation, labeled by arrows B, as a feature of tissue repair.
