The selected NSCLC PDX tumors were either histologically categorized as adenocarcinoma (Lu7406) or squamous cell carcinoma (Lu7414, Lu7177, Lu7766, and Lu7860), which was confirmed by the TP63 expression analysis with the exception of false-negative detection for Lu7414 as discussed above (Fig. 2a). The gene discussed is TP63; the disease is squamous cell carcinoma.