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Asthma
Asthma Miscellany
Documents:
worst US cities and states for allergies and asthma
climate change is increasing ragweed pollen and ozone (pdf)
web
Juan Declet-Barreto, Ph.D. and...
NRDC
2015-05-01
US children increasingly medicated
web
Reuters
2008-11-03
Tennessee bad for asthma
web
CNN
2004-03-16