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What Causes Asthma?
What Causes Asthma?
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What Causes Asthma?
Asthma is chronic disorder that restricts breathing. Here’s more information on how asthma affects the lungs and what happens during an asthma attack.
Channel: About.com
Category: Health & Fitness
Video Length: 0
Date Found: January 16, 2009
Date Produced:
View Count: 122
 
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