Differential gene expression analysis of the neonatal lung ILC2 subsets. (A and B) Heatmap shows all the genes that are differentially expressed (P ≤ 0.05) by neonatal ILC2 subsets. Genes that have higher expression in subset 1 than subset 2 (A), as well as genes that have higher expression in subset 2 than subset 1 (B), are shown. The arrows point to the genes that are mentioned in the text.