AUTHOR=Gui Long , Cao Heshan , Zheng Min , Pan Yu , Ning Chengdong , Cheng Mingjin TITLE=The J-shaped relationship between serum osmolality and all-cause mortality in critically ill patients with myocardial infarction: a retrospective cohort study JOURNAL=Frontiers in Endocrinology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1542403 DOI=10.3389/fendo.2025.1542403 ISSN=1664-2392