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.
Survival curves. (A) OS and (B) PFS are shown for three groups. Both of the RT groups had better OS and PFS than no RT group (P<0.01) and there was no significant difference in OS and PFS between the two RT groups (P>0.017).
Abbreviations: RT, radiotherapy; OS, overall survival; PFS, progression-free survival; ns, not significant.
