Asthma – Mucus – Lodi News-Sentinel

Asthma – Mucus
Lodi News-Sentinel
Brothers Andrew Bergstresser, left, 6, and Aiden Bergstresser, 6, learn what lungs are like when they become filled with mucus due to an asthma attack during the Asthmalogy event at the World of Wonders science museum on Saturday, Feb. 23, 2013.

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