Corrigendum: Association Between Current Physical Activity and Current Perceived Anxiety and Mood in the Initial Phase of COVID-19 Confinement - López-Bueno, Rubén; Calatayud, Joaquín; Ezzatvar, Yasmin; Casajús, José A.; Smith, Lee; Andersen, Lars L.; López-Sánchez, Guillermo F. (Frontiers in Psychiatry, 2021)