Effects of transcutaneous electrical acupoint stimulation on recovery after internal spinal fixation: a randomised controlled trial. - Zhang, You-Chuan; Zhao, De-Xiang; Fan, Hong-Yue; Zhou, Yan-Fen; Huang, Peng-Fei; Liu, Fei; Xu, Wen-Ping (BMC Anesthesiology, 2025)