Knowledge domain and emerging trends in post-stroke cognitive impairment: a bibliometric analysis - Zhang, Heyu; Li, Yanwei; Zhan, Luqian; Long, Jingfang; Shen, Jianing; Chen, Jiahui; Qian, Jiajing; Pan, Zhiming; Wu, Xue; Wang, Zhen; Wu, Wenjun; Huang, Guiqian (Frontiers in Aging Neuroscience, 2025)