A retrospective study on the efficacy of unilateral biportal endoscopic discectomy treating lumbar disc herniation and concomitant grade I stable degenerative lumbar spondylolisthesis. - Wang, Haozhong; Xiao, Changming; Zhang, Kaiquan; Xie, Mingzhong; Dai, Haoping (BMC Musculoskeletal Disorders, 2025)