Serum tumor markers and outcomes in lung cancer patients with brain metastases: a retrospective longitudinal cohort study - Liu, Yingtong; Dai, Shuang; Liu, Zheran; He, Ling; Zhu, Lili; Qin, Zijian; Fan, Haohan; Fang, Fang; Xie, Yuping; Peng, Xingchen (Translational Lung Cancer Research; Vol 13, No 9 (September 30, 2024): Translational Lung Cancer Research, 2024)