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.
... of ctDNA in the bloodstream indicates that the cancer has not returned. Scientists have discovered that dying tumor cells release small pieces of their DNA into the bloodstream. These ...