Large-scale automatic carbon ion treatment planning for head and neck cancers via parallel multi-agent reinforcement learning. - Jueye Zhang; Chao Yang; Youfang Lai; Kai-Wen Li; Wenting Yan; Yunzhou Xia; Haimei Zhang; Jingjing Zhou; Gen Yang; Chen Lin; Tian Li; Yibao Zhang (CoRR, 2025)