Practical Geriatrics
Influence of sleep duration and social isolation on cognitive frailty in elderly patients with chronic heart failure
XU Zhongmei, LIU Fang, CHANG Yun, ZHENG Xuemei, SHANG Shuhua
Practical Geriatrics . 2026, (4): 377 -381 .  DOI: 10.3969/j.issn.1003-9198.2026.04.010