The risk estimates from the vast majority of the short-term studies include the effects of only one or two-day exposure to air pollution.
Risk estimates include effects from 1 or 2 days of pollution exposure.
The risk estimates the effects of a month of pollution exposure.
A few men play chess.
The old woman and child are getting wet.
No one cares about enforcing the law in this country.
A large group of people are dancing outside of a church
Men are dancing while others watch.
There is a man in the bowling alley.