Figure 1.
The locations of the six study areas in Inner Mongolia. The number given for each area represents the prevalence of clinical pollen‐induced allergic rhinitis (PiAR) and epidemiologic allergic rhinitis (AR) (in parenthesis)
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.