As discussed earlier, EPA's Science Advisory Board, while acknowledging the uncertainties in estimation of a PM-mortality relationship, has repeatedly recommended the use of a study that
The EPA has a Science Advisory Board.
The EPA does not have a Science Advisory Board.
A band playing their songs.
The lady is consuming alchohol.
Men stand outdoors in the rain.
Do you know who played the wagon driver?
The woman is wearing a red striped shirt.
She was always shifty, so we were wary of her.