title: Quantitative assessment of regional ventilation and perfusion in children with cystic fibrosis.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003201:Computers; D003550:Cystic Fibrosis / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography; D011877:Radionuclide Imaging; D012129:Respiratory Function Tests; D013667:Technetium; D014692:Ventilation-Perfusion Ratio; D014978:Xenon
chemical_list: D014978:Xenon; D013667:Technetium