title: Lung clearance in two patients with cystic fibrosis.
mesh_terms: D000328:Adult; D001991:Bronchitis / Q000503:physiopathology; D003550:Cystic Fibrosis / Q000503:physiopathology*; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008297:Male; D011137:Polystyrenes / Q000032:analysis; D011865:Radioisotope Dilution Technique; D012588:Scintillation Counting; D013183:Sputum / Q000032:analysis; D013667:Technetium
chemical_list: D011137:Polystyrenes; D013667:Technetium