title: Prolonged retention of radioactivity following perfusion lung scan in asthmatic patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D001249:Asthma / Q000150:complications*; D005260:Female; D006207:Half-Life; D006801:Humans; D008168:Lung / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D011652:Pulmonary Circulation; D011877:Radionuclide Imaging; D012711:Serum Albumin, Radio-Iodinated / Q000378:metabolism*; D013997:Time Factors
chemical_list: D012711:Serum Albumin, Radio-Iodinated