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
There are uncertainties in the estimation of PM-mortality relationships.
mnli hypothesis: There are uncertainties in the estimation of PM-mortality relationships. premise: 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