“S-1 Plus Leucovorin and Oxaliplatin in Combination With Lentinan As First-Line Therapy in Patients With Metastatic Gastric Cancer ”. Journal of Cancer Research Updates 9, no. 1 (January 20, 2020): 69–74. Accessed May 5, 2026. https://www.neoplasiaresearch.com/index.php/jcru/article/view/539.