Association between FEV1/FVC levels and all-cause mortality in the general population - Leheng Tang; Fan Wu; Shiyu Zhang; Jie Ou; Juncheng Liang; Ranxi Peng; Siman Liao; Qiaorui Zhou; Yingtong Chen; Xiaozi Guo; Jingxian Chen; Qi Wan; et al. (BMC Pulmonary Medicine, 2025)