AUTHOR=Shen Shasha , Xing Shiyun , Shen Tingting , Niu Li , Tian Xiaojing , Ma Hu , Gou Xiaoxia TITLE=Nutritional risk, functional decline, and symptom burden in lung cancer: a study based on PG-SGA scores and biochemical data JOURNAL=Frontiers in Nutrition VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1545177 DOI=10.3389/fnut.2025.1545177 ISSN=2296-861X