Effects of dual-task mode brain-computer interface based on motor imagery and virtual reality on balance and attention in patients with stroke: a randomized controlled pilot trial. - Wan, Chunli; Zhang, Qiyuan; Qiu, Yu; Zhang, Wenting; Nie, Yao; Zeng, Shuyi; Wang, Jian; Shen, Xiaowen; Yu, Cui; Wu, Xixi; Zhang, Yuting; Li, Yongqiang (Journal of NeuroEngineering & Rehabilitation (JNER), 2025)