Analysis of the mediating role of state-trait anxiety between sleep quality and happiness in elderly patients with insomnia
Yang Zhaoxi, Wan Ailan, Huang Xiaoyan, Liang Yanli, Huang Wenmei
journal1 . 2021, (2): 131 -135 .  DOI: 10.3969/j.issn.1006-5253.2021.02.008