All six FGFR3-TACC3 fusion-positive samples were histologically diagnosed as squamous cell carcinoma, which corresponds well to the finding that FGFR3-TACC3 fusions are detected in TCGA lung squamous cell carcinoma but not in TCGA lung adenocarcinoma (Fig. 1a and Supplementary Table 1). This evidence concerns the gene FGFR3 and medical procedure.