AUTHOR=Zhang Jiani , Ren Yuxin , Li Bingjie , Cao Qi , Wang Xiaodong , Yu Haiyan TITLE=Heart disease in pregnancy and adverse outcomes: an umbrella review JOURNAL=Frontiers in Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1489991 DOI=10.3389/fmed.2025.1489991 ISSN=2296-858X