AUTHOR=Clini Enrico , Costi Stefania TITLE=Looking Ahead in Pulmonary Rehabilitation JOURNAL=Frontiers in Rehabilitation Sciences VOLUME=1 YEAR=2021 URL=https://www.frontiersin.org/journals/rehabilitation-sciences/articles/10.3389/fresc.2020.615545 DOI=10.3389/fresc.2020.615545 ISSN=2673-6861