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.
The cumulative proportion surviving at end of the interval (60 months) is represented in percentage. Follow up of 52 patients (2–5 years of duration) were considered in the study.
