title: Patterns of radioaerosol lung scintiscanning in chronic obstructive lung disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D000336:Aerosols; D000368:Aged; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011877:Radionuclide Imaging; D012907:Smoking; D013670:Sodium Pertechnetate Tc 99m / Q000008:administration & dosage*
chemical_list: D000336:Aerosols; D013670:Sodium Pertechnetate Tc 99m