Transcranial direct current stimulation in affecting neuropsychiatric symptoms of post-COVID syndrome: No change in microstates and functional connectivity - Nina Biačková; Olga Laskov; Andrea Adamová; Václava Piorecká; Jan Štrobl; Stanislav Jiříček; Jan Hubený; Vlastimil Koudelka; Anna Čechová; Natalie-Anna Böhmová; Monika Klírová (PLoS ONE, 2026)