Fatigue and cognitive impairment in Post-COVID-19 Syndrome: A systematic review and meta-analysis - Ceban, F; Ling, S; Lui, L; Lee, Y; Gill, H; Teopiz, KM; Rodrigues, NB; Subramaniapillai, M; Di Vincenzo, JD; Cao, B; Lin, K; Mansur, RB; Ho, RC; Rosenblat, JD; Miskowiak, KW; Vinberg, M; Maletic, V; McIntyre, RS (Brain, behavior, and immunity, 2022)