Correction: Opposing needling in the treatment of knee osteoarthritis: an improved study protocol for a randomized controlled trial - Li, Huiying; Qian, Siyu; Liu, Yanqin; Guo, Yan; Chen, Xiaoqin; Hu, Yao; Fu, Qiyue; Li, Qing; Xiang, Yuting; Liu, Ying; Wu, Xi; Luo, Tingting (Frontiers in Medicine, 2026)