by
Jeanne Ricketts
Language: English
Release Date: July 15, 2012
In the United States alone, asthma is the most chronic disease, affecting over 20 million Americans. Over 6 million of those are children, under the age of 18. Asthma is one of the primary causes of school absenteeism. It is also the top lung-disease that is work-related, causing thousands of missed...