EGFR and lung adenocarcinoma: In contrast to Wang’s finding that the prognostic value of the neutrophil to lymphocyte ratio could be observed only in patients with wild-type tumors (11), our analysis showed that both high-level neutrophil to lymphocyte and platelet to lymphocyte ratios were strongly associated with worse prognosis in patients with stage I EGFR-altered lung adenocarcinoma.