Site of airway obstruction in asymptomatic asthmatic children.
D000293:Adolescent; D000402:Airway Obstruction / Q000503:physiopathology*; D001249:Asthma / Q000503:physiopathology*; D002648:Child; D006801:Humans; D008449:Maximal Expiratory Flow-Volume Curves; D012907:Smoking