title: Radioactive xenon pulmonary studies in the smoker.
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D003581:Cytodiagnosis; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D011653:Pulmonary Diffusing Capacity; D011868:Radioisotopes; D011877:Radionuclide Imaging; D012129:Respiratory Function Tests; D012907:Smoking; D013147:Spirometry; D013183:Sputum / Q000166:cytology; D014692:Ventilation-Perfusion Ratio; D014978:Xenon
chemical_list: D011868:Radioisotopes; D014978:Xenon