Meanwhile, we examined the prognosis of lung adenocarcinoma patients receiving chemotherapy in the Kaplan–Meier Plotter database and discovered that patients with high HNF4G expression had a worse prognosis, despite the fact that the p-value was not significant, which may be due to the small sample size (Fig. 1C). The gene discussed is HNF4G; the disease is lung adenocarcinoma.