Ninomiya, Kiichiro, Isao Oze, Yuka Kato, Toshio Kubo, Eiki Ichihara, Kammei Rai, Kadoaki Ohashi, et al. “Influence of Age on the Efficacy of Immune Checkpoint Inhibitors in Advanced Cancers: A Systematic Review and Meta-Analysis”. Acta Oncologica 59, no. 3 (March 3, 2020): 249–256. Accessed May 20, 2026. https://medicaljournalssweden.se/actaoncologica/article/view/24064.