AUTHOR=Aristizabal Juan-Pablo , Navegantes Raphael , Melo Eline , Pereira Antonio TITLE=Use of Heart Rate Variability Biofeedback to Reduce the Psychological Burden of Frontline Healthcare Professionals Against COVID-19 JOURNAL=Frontiers in Psychology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2020.572191 DOI=10.3389/fpsyg.2020.572191 ISSN=1664-1078