Incidence and risk factors for post-stroke delirium in the elderly: A national inpatient sample (NIS) analysis - Jianrong Zhang; Mei Chen; Yaoyang Huo; Xilin Liu; Yu’e Wu; Xiaohuan Li; Jingqin Wang; Fengling Yang; Gang Liu; Hao Xie; Ying Gao (PLoS ONE, 2026)