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. 2021 Apr 19;7(2):00945-2020. doi: 10.1183/23120541.00945-2020

FIGURE 1.

FIGURE 1

Percent difference in exhaled nitric oxide fraction (FeNO) relative to reference group a) without detectable aeroallergen immunoglobulin (Ig)E and b) with aeroallergen IgE. AR: allergic rhinitis.