title: Perfusion lung scan in normal volunteers.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008168:Lung / Q000502:physiology* / Q000503:physiopathology; D008297:Male; D008863:Microspheres; D008875:Middle Aged; D011652:Pulmonary Circulation; D011655:Pulmonary Embolism / Q000175:diagnosis*; D011877:Radionuclide Imaging