Lung perfusion in asthma of childhood.
D000293:Adolescent; D001249:Asthma / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008168:Lung; D010477:Perfusion; D011652:Pulmonary Circulation; D011877:Radionuclide Imaging