Recognition of the peripheral airway impairment phenotype in well controlled asthmatic children

Although current National Asthma Education and Prevention Program (NAEPP) asthma guidelines1 have proven effective, a considerable number of children2 and adults3 experience poor asthma control. The peripheral airways defined as distal to the 7th or 8th generation of the tracheobronchial tree, with an intra-luminal diameter of (Source: Annals of Allergy, Asthma and Immunology)

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