Global, regional, and national burden of low back pain for adults aged 55 and older 1990–2021: an analysis for the global burden of disease study 2021. - Xu, Shangbo; Chen, Jiaxin; Wang, Chicheng; Lin, Ye; Huang, Weipeng; Zhou, Haoyue; Ji, Weibiao; Chen, Yangbo (BMC Musculoskeletal Disorders, 2025)