Definition

Cystic fibrosis is passed down through a family and causes mucus to build up in the lungs and other areas of the body. It is one of the most common lung diseases in children and young adults. It could possibly be deadly.


Source: Cystic fibrosis | University of Maryland Medical Center http://umm.edu/health/medical/ency/articles/cystic-fibrosis#ixzz2kkP3RTfc
University of Maryland Medical Center
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