Beyond self-reports: serum cotinine reveals sex-and age-related differences of smoking on all-cause and disease-specific mortality - Jiang, Qi; Junjun, Liu; Wang, Xiaochuan; Luo, Li; He, Gaoyan; Wu, Xiaojuan; Min, Qian; Long, Ying; Wenjun, Wang; Zhu, Tao; Yao, Yu (Frontiers in Public Health, 2025)