Chart 22-3.
Trends in heart transplantations (United Network for Organ Sharing: 1975–2011). Source: United Network for Organ Sharing, scientific registry data.
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.