title: [Incidence of cystic fibrosis in children with diseases of the respiratory system].
mesh_terms: D002648:Child; D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D006801:Humans; D007223:Infant; D012140:Respiratory Tract Diseases / Q000175:diagnosis*; D013542:Sweat / Q000032:analysis
vernacular_title: Czestość zwłóknienia torbielowatego u dzieci z przewlekłymi schorzeniami układu oddechowego.