Impact of tDCS on persistent COVID-19 olfactory dysfunction: a double-blind sham-controlled study. Issue 1 (23rd May 2022) - Vestito, Lucilla; Mori, Laura; Trompetto, Carlo; Bagnasco, Diego; Canevari, Rikki F; Ponzano, Marta; Subbrero, Davide; Cecchella, Ester; Barbara, Cristina; Clavario, Piero; Bandini, Fabio