AUTHOR=Szczerba Radosław , Żelazna Wiktoria , Sokołowski Jakub , Wyroba Natalia , Wydrych Zuzanna , Wita Michał , Cichoń Małgorzata , Orszulak Michał , Mizia-Stec Katarzyna , Wita Krystian , Wybraniec Maciej T. TITLE=Temporal left ventricular ejection fraction variations and outcomes in wide population of cardiovascular patients with and without heart failure JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2025.1559258 DOI=10.3389/fcvm.2025.1559258 ISSN=2297-055X