Corrigendum: Individual, Sociodemographic, and Environmental Factors Related to Physical Activity During the Spring 2020 COVID-19 Lockdown - Teran-Escobar, Claudia; Forestier, Cyril; Ginoux, Clément; Isoard-Gautheur, Sandrine; Sarrazin, Philippe; Clavel, Anna; Chalabaev, Aïna (Frontiers in Psychology, 2021)