Dương , T.Q.N. et al. 2026. RESULTS OF ORAL VINORELBINE MAINTENANCE TREATMENT IN STAGE IV NON-SMALL CELL LUNG CANCER PATIENTS AT VIETNAM NATIONAL CANCER HOSPITAL. Vietnam Medical Journal. 559, 2 (Mar. 2026). DOI:https://doi.org/10.51298/vmj.v559i2.17621.