Clinical analysis of percutaneous endoscopic unilateral laminotomy for bilateral decompression for single segment degenerative lumbar spinal stenosis: a systematic review and single-arm meta-analysis - Jiang, Tianqi; Chen, Zhijun; Luo, Yitong; Tian, Xinyue; Zhou, Yanni; Huan, Yanqiang; He, Yongxiong (Frontiers in Surgery, 2025)