Treatment modalities and survival outcomes among elderly patients with stage IV small-cell lung cancer and synchronous brain metastases: A retrospective seer-based cohort study.
OBJECTIVE Chemotherapy improves survival in patients with lung cancer. However, the prognostic associations linked to chemotherapy remain unclear in elderly patients with stage IV small-cell lung cancer (SCLC) and brain metastases. This retrospective study was performed to explore the prognostic associations of differe...