AUTHOR=Dierckx Hans , Zhao Xiaopeng , Tolkacheva Elena G. TITLE=Editorial: Non-linear analysis and machine learning in cardiology JOURNAL=Frontiers in Physiology VOLUME=14 YEAR=2023 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2023.1183149 DOI=10.3389/fphys.2023.1183149 ISSN=1664-042X