Grad-MTSeg: Mitigating Multi-Task Gradient Conflicts via Hierarchical Gradient Optimization for NPC Radiotherapy Delineation. - Junqiang Ma; Luyi Han; Dengqiang Jia; Hui Xie; Tao Tan 002; Henry H. Y. Tong; Anne W. M. Lee; Sung Inda Soong; Yue Sun 001 (BIBM, 2025)