A previous study looking at cytokine biomarkers for example, IL‐4, 5, 10, 13, 33 measured from fluid nasal lining and sputum from allergic asthma patients also demonstrated many of the cytokines and chemokines measured (i.e., type‐ 2 cytokines) correlated moderately‐strongly (r = > 0.5) with each other (intraorgan comparison). The gene discussed is IL4; the disease is allergic asthma.