Inclusion of hypocretin-1 improved performance of poor sleep quality prediction for elderly patients with acute ischemic stroke: a prospective cohort study - Fu, Ting; Zhang, Weiwei; Guo, Rongrong; He, Shuang; Yu, Saiying; Wang, Huiying; Zhang, Yunfeng; Wu, Ying (Frontiers in Aging Neuroscience, 2025)