TGFB1 and laryngotracheoesophageal cleft: The stage‐dependent pathway analyses (of phase 3) suggest that the functional signals were mostly related to cell‐to‐cell communication (e.g., Endocytosis) and cancer dormancy (e.g., TGF‐beta signaling) in early‐stage LC and cell proliferation in advanced LC stage (e.g. EGFR) (Fig. S5 and Table S2).