Figure 2.
Pooled pattern of the risk curves of four tropical cities. Red solid line is the pooled pattern, while the gray areas are the 95% confidence interval.
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.