Although a recently published paper reported the association of high NKX2‐1 expression and poor SCLC patient prognosis (Yan et al, 2019), NKX2‐1 expression was not significantly associated with overall survival in this cohort (Fig. 1E) (log‐rank test, P = 0.09). Here, NKX2-1 is linked to small cell lung carcinoma.