The Effectiveness of Computerized Cognitive Training in Patients With Poststroke Cognitive Impairment: Systematic Review and Meta-Analysis - Min Gao; Lu Huang; Jiang Yi; Tianqi Zhang; Guangyao Zhu; Qi Zhang; Jiaxiao Tian; Rongxuan Zhao; Xiaoqin Duan; Zhongliang Liu (Journal of Medical Internet Research)