title: [Diagnostic significance of lung ventilation study with 81mKr gas: in reference to the discrepant cases between ventilation and perfusion (author's transl)].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D007726:Krypton; D008168:Lung / Q000000981:diagnostic imaging / Q000502:physiology*; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011868:Radioisotopes; D011877:Radionuclide Imaging; D013667:Technetium; D014692:Ventilation-Perfusion Ratio
chemical_list: D011868:Radioisotopes; D007726:Krypton; D013667:Technetium