B, K.; B, T. P.; M, A.; Krishna, K. R.; Rajamanickam, S.; Venkatesan , S. NeuroQFormer-Net: A Quaternion-Guided Hybrid Attention Transformer Fusion Network for Accurate Brain Tumor Segmentation. j.electron.electromedical.eng.med.inform 2026, 8, 1456-1469.