Practical Geriatrics
Association of sleep quality with frailty among adults aged 80 years and older in an integrated medical and long-term care institution
BO Yun, WANG Qi, YANG Lianqianzi, ZHU Jinyu, ZHANG Yuanyuan
Practical Geriatrics . 2026, (1): 38 -42 .  DOI: 10.3969/j.issn.1003-9198.2026.01.008