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Risk of outpatient visits for total respiratory diseases in lag effects of ozone metrics measured at 75th percentile relative to 25th percentile. RRs were estimated using DLNM, which includes 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.
