Tian et al.30constructed a nomogram for predicting the survival of patients with NSCLC with MPE or malignant pleural pericardial effusion at the first diagnosis based on the SEER database; however, the SEER database did not contain some of the clinicopathological factors and molecular markers that may affect the survival of patients with lung cancer, such as physical status and the EGFR mutation. The gene discussed is EGFR; the disease is lung cancer.