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Prevalences of several common respiratory pathogens in CF as a function of age. (Adapted from the 2008 Annual Data Report of the Cystic Fibrosis Foundation Patient Registry, Bethesda, MD [http://www.cff.org/UploadedFiles/research/ClinicalResearch/2008-Patient-Registry-Report.pdf], with permission. © 2009 Cystic Fibrosis Foundation.)
