ERBB4 and breast neoplasm: Significant (False Discovery Rate (FDR) < 0.05) gene sets included: genes co-amplified with MYCN in primary neuroblastoma tumors and genes within amplicon 20q11 with copy number variations in breast tumors in both Curated Gene Sets and Chemical and Genetic Perturbation Gene Sets; and genes involved in ERBB4 signaling events in Curated Gene Sets and All Canonical Pathways.