AUTHOR=Ouyang Mengqian , Liu Bowen , Xu Riping TITLE=Income inequality and multimorbidity patterns in China: a micro-level analysis using CHARLS JOURNAL=Frontiers in Public Health VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1588325 DOI=10.3389/fpubh.2025.1588325 ISSN=2296-2565