AUTHOR=Lee Seyune , Jung Young-Il , Yoon Hyejung , Jung Se-Youn , Jeon Boyoung , Oh In-Hwan , Jeong Su Jin TITLE=Status and factors related to hemoglobin concentration of people with vs. without disability—using nationwide claims check-up database JOURNAL=Frontiers in Nutrition VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1519098 DOI=10.3389/fnut.2025.1519098 ISSN=2296-861X