Air quality has improved dramatically in recent years, and researchers in North Carolina have found an associated decline in rates of death from respiratory disease.
from Well http://well.blogs.nytimes.com/2014/06/23/cleaner-air-linked-to-fewer-deaths/
from Well http://well.blogs.nytimes.com/2014/06/23/cleaner-air-linked-to-fewer-deaths/
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