AUTHOR=Huang Liyan , He Xiaofang , Zuo Yao , Yang Hui , Zhang Lin TITLE=The relationship between sleep duration and frailty: findings from the China Health and Retirement Longitudinal Study JOURNAL=Frontiers in Public Health VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2024.1493533 DOI=10.3389/fpubh.2024.1493533 ISSN=2296-2565