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.
Hazard ratios (HRs) for death and P values show no significance of heterogeneity of treatment effect according to the sex, age, Eastern Cooperative Oncology Group (ECOG) status, and primary tumor location.
