AUTHOR=Martínez-Sellés Manuel , Ayesta Ana , Díaz-Molina Beatriz , Bayes-Genis Antoni , Baranchuk Adrian TITLE=Editorial: The Role of Sex in Heart Failure and Transplantation JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2021.690438 DOI=10.3389/fcvm.2021.690438 ISSN=2297-055X