Fig. 1 -. Selection of cases and controls after analysis of the Data Bank of Lab Vigileish, INI/FIOCRUZ, 1989 to 2009, Rio de Janeiro, Brazil.
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.