AUTHOR=Ren Jiajia , Liu Wanyuan , Jin Xuting , Zhang Chuchu , Xu Xi , Deng Guorong , Gao Xiaoming , Li Jiamei , Li Ruohan , Zhang Xiaoling , Hou Yanli , Wang Gang TITLE=Global, regional, and national burden of myocarditis and its attributable risk factors in 204 countries and territories from 1990 to 2021: updated systematic analysis JOURNAL=Frontiers in Public Health VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1542921 DOI=10.3389/fpubh.2025.1542921 ISSN=2296-2565