AUTHOR=Zheng Xiaolong , Zheng Xin , Zhang Changgui , Liu Minghua TITLE=Geriatric nutritional risk index as a predictor of 30-day and 365-day mortality in patients with acute myocardial infarction: a retrospective cohort study using the MIMIC-IV database JOURNAL=Frontiers in Nutrition VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1544382 DOI=10.3389/fnut.2025.1544382 ISSN=2296-861X