These included olfactory transduction, primary immunodeficiency, PI3K-AKT signaling, tyrosine metabolism, chemokine signaling, JAK-STAT signaling, basal cell carcinoma, T-cell receptor signaling, Wnt signaling, EGFR tyrosine inhibitor resistance, RAS signaling, and breast cancer signaling. The gene discussed is EGFR; the disease is breast cancer.