Brain fog assessment in patients recovered from COVID-19 in China: a development and validation study. - Zhou, Shaojiong; Xu, Jiahua; Liu, Xiaoduo; Li, Aonan; Zhao, Bo; Geng, Chaofan; Wei, Tao; Liu, Yunzhe; Wang, Zhibin; Tang, Yi (International Journal of Neuroscience, 2025)