Corrigendum: Reduction of COVID-19 Anxiety Levels Through Relaxation Techniques: A Study Carried Out in Northern Spain on a Sample of Young University Students - Ozamiz-Etxebarria, Naiara; Dosil Santamaría, María; Eiguren Munitis, Amaia; Picaza Gorrotxategi, Maitane (Frontiers in Psychology, 2020)