Investigations of a combination of atopic status and age of asthma onset identify asthma subphenotypes.

Li H, Castro M, Denlinger LC, Erzurum SC, Fahy JV, Gaston B, Israel E, Jarjour NN, Levy BD, Mauger DT, Moore WC, Wenzel SE, Zein J, Bleecker ER, Meyers DA, Chen Y, Li X, NHLBI Severe Asthma Research Program (SARP)