Figure 1.
Schematic graph showing frequency distribution of follow-up time after diagnosis of the first primary tumor in the prior, post and metachronous groups.
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.