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 survival analysis; Horizontal axis = time in days until death occurs; ES = Espírito Santo State; MG = Minas Gerais State; RJ = Rio de Janeiro State; NA = Not applicable (age < 15 years).
