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.
Comparison of the mean dose to organs at risk for upper, lower or combined upper and lower mediastinal radiotherapy treatment. Five patients had combined upper and lower mediastinal disease, 3 patients only lower and 2 only upper mediastinal disease
