Corrigendum: Major Stress-Related Symptoms During the Lockdown: A Study by the Italian Society of Psychophysiology and Cognitive Neuroscience - Invitto, Sara; Romano, Daniele; Garbarini, Francesca; Bruno, Valentina; Urgesi, Cosimo; Curcio, Giuseppe; Grasso, Alberto; Pellicciari, Maria Concetta; Koch, Giacomo; Betti, Viviana; Fiorio, Mirta; Ricciardi, Emiliano; et al. (Frontiers in Public Health, 2021)