AUTHOR=Zhang Fan , Li Wenjian TITLE=The mediating role of vitamin D in the relationship between triglyceride glucose index and mortality in patients with diabetes mellitus: a causal mediation analysis JOURNAL=Frontiers in Nutrition VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2024.1492647 DOI=10.3389/fnut.2024.1492647 ISSN=2296-861X