Transcranial direct current stimulation with Bosu-ball training increases cortical activation and improves ankle-foot function among individuals with chronic ankle instability: A randomized controlled trial - Xin Luo; Peixin Shen; Xueke Huang; He Gao; Yubin Ge; Zhiwen Dong; Yan Chen; Daniel T.P. Fong; Qipeng Song (PLoS ONE, 2026)