GRB2 and cancer: Enriched pathways associated with cluster 2 include “Signaling by ERBB2 in Cancer” (Holm-adjusted p = 0.045), “PI3K events in ERBB2 signaling” (Holm-adjusted p = 0.013), and “GRB2 events in ERBB2 signaling” (Holm-adjusted p = 0.013).