Table III.
Comparison of prevalence of RF/RHD (diagnostic categories) in urban and rural school children in 2007-2008 and 1992-1993
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.