An official website of the United States government
Here's how you know
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.
Kaplan-Meier (K-M) curves of survival over the first 5 years postoperatively, stratified according to postoperative myocardial infarction (MI), stroke, or neither.