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How Asthma Affects the Respiratory System
How Asthma Affects Breathing
How asthma affects your lungs | Asthma + Lung UK
How does asthma work? - Christopher E. Gaw
What is Asthma?
The Mechanics of an Asthma Attack. An Animated Insight
What Is Severe Asthma?
How Asthma Affects Your Lungs
Airways with asthma 3D animation
Understanding Asthma: Mild, Moderate, and Severe
How Asthma Affects Your Lungs and Your Life
Understanding Asthma - pathophysiology and treatment