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.
Distribution of the study population in the metropolitan area of Sao Paulo, according to zip code and study site (n=557)
HCor = Hospital do Coracao; IC = Instituto Central; InCor = Instituto do Coracao; ICESP = Instituto do Cancer do Estado de Sao Paulo
