The combined effects of physical frailty and cognitive function on all-cause mortality: findings from the Chinese Longitudinal Healthy Longevity Survey and meta-analysis. - Li, Zhi-Qiang; Gong, Xin-Ran; Wang, Chen-Lu; Cao, Feng; Zhang, Xiao-Wen; Li, Rong-Rong; Tao, Long; Liu, Jian-Ping (Medical Data Mining, 2025)