AUTHOR=Stifano Giuseppina , De Palma Raffaele TITLE=Editorial: Etiopathogenesis of Systemic Sclerosis: An Update JOURNAL=Frontiers in Immunology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2021.663381 DOI=10.3389/fimmu.2021.663381 ISSN=1664-3224