title: [Studies on unevenness of regional ventilation and volume in patients with bronchial asthma].
mesh_terms: D000328:Adult; D001249:Asthma / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D014692:Ventilation-Perfusion Ratio; D014980:Xenon Radioisotopes
chemical_list: D014980:Xenon Radioisotopes