Asthma is a common chronic disorder of the airways characterized by periods of reversible airflow obstruction known as asthma episodes or attacks.4,5 ...
National Center for Environmental Health (U.S.). Division of Environmental Science and Practice. Asthma and Community Health.
December 2018
Description:
More than 24 million Americans have asthma, affecting 1 in 12 children and 1 in 14 adults.1 Asthma accounts for more than 439,000 hospitalizations, 1....
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