Note that subsite classification showed that in the TCGA-HNC dataset, besides oral cavity cancer, cancers of the laryngeal, oropharyngeal, and hypopharyngeal subsites also have Erbb4 mutations, but absent in MSK-IMPACT advanced/metastatic cancers of these subsites (Table S9). The gene discussed is ERBB4; the disease is metastatic malignant neoplasm.