Chest X-rays and asthma.
D000293:Adolescent; D001249:Asthma / Q000150:complications / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography