Jiayi, L., Hao, H., Mengtong, L., Wenshuai, D., Peng, S. (2026). A hybrid CNN–transformer network with cross-level multi-scale fusion and hierarchical attention for brain tumour MRI segmentation. Journal of King Saud University - Computer and Information Sciences. https://doi.org/10.1007/s44443-026-00942-w