P-491 Palliative chemotherapy (QT) and prognostic factors in elderly patients with advanced non-small Cell lung cancer (NSCLC) von Guerreroero Zotano, A., Pellin Ariño, L., Molina Saera, J., Palomar Abad, L., Ponce Lorenzo, J., Giménez Ortiz, A., Díaz Beveridge, R., Segura Huerta, A., Montalar Salcedo, J.

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