Advances in the treatment of glioma-related signaling pathways and mechanisms by metformin - Ma, Xingyuan; Sun, Chao; Ding, Xiao; Zhang, Yuhang; Deng, Tingzhen; Wang, Yatao; Yang, Haijun; Ding, Ruiwen; Li, Haotian; Wang, Dawen; Zheng, Maohua (Frontiers in Oncology, 2025)