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.
Cumulative 6-day relative risks of ozone metrics associated with outpatient visits for total respiratory disease using distributed lag non-linear model. Models included cumulative 6-day effects of PM10 and NO2, cumulative 8-day effects of average temperature, cumulative 15-day effects of outpatient visits for pneumonia and influenza, relative humidity, wind speed, holiday effects, day of the week; and long-term trends.
