Cystic fibrosis (CF) is the most common life-threatening autosomal recessive disease in Caucasian children; it has an proceeding of 1 case in every 2500 labor born alive. CF involves an anomalous power of the exocrine glands, caused by a mutation of a gene (cystic fibrosis transmembrane conductance regulator, CFTR) located on chromosome 7, which codes for a protein complicated in ion transport through the cell membrane.

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