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.
Kaplan–Meier for central nervous system malignancy post-radiation (9 radiotherapies, 4 no radiotherapy) using censor age central nervous system malignancy –Log-rank Chi-square = 19.54, P < .001, for those with radiotherapy (n = 266) and without radiotherapy (n = 1079).
