title: Regional ventilation assessment by transmission scintigraphy. A preliminary report.
mesh_terms: D006801:Humans; D007204:Indium; D008722:Methods; D011868:Radioisotopes; D011877:Radionuclide Imaging; D012119:Respiration; D012129:Respiratory Function Tests; D012140:Respiratory Tract Diseases / Q000175:diagnosis*; D013147:Spirometry; D013382:Subtraction Technique; D013667:Technetium; D014978:Xenon
chemical_list: D011868:Radioisotopes; D007204:Indium; D014978:Xenon; D013667:Technetium