AUTHOR=Zhaojun Mei , Yang Long , Wanyu Xie , Jingjing Li TITLE=Commentary: The association between serum vitamin C levels and respiratory infections in children and adolescents JOURNAL=Frontiers in Nutrition VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1654402 DOI=10.3389/fnut.2025.1654402 ISSN=2296-861X