Degenerative spondylolisthesis and unilateral biportal endoscopic decompression for lumbar spinal stenosis: a single-center, prospective cohort trial protocol. - Liu, Yuquan; Li, Guangpeng; Yu, Lingjia; Sun, Haibo; Zhu, Bin; Fei, Qi; Lo, Yuanshun; Yang, Yong; Tan, Haining; Li, Xiang (BMC Musculoskeletal Disorders, 2025)