Unilateral biportal endoscopic transforaminal lumbar interbody fusion versus conventional interbody fusion for the treatment of degenerative lumbar spine disease: a systematic review and meta-analysis. - Yu, Qi; Lu, Hui gen; Pan, Xue kang; Shen, Zhong hai; Ren, Peng; Hu, Xu qi (BMC Musculoskeletal Disorders, 2023)