AUTHOR=Zhang Yanyu , Su Quanxin , Yu Jiawen , Sun Xiuli TITLE=Long-term trends in the burden of multiple myeloma in China: a Joinpoint regression and age-period-cohort analysis based on GBD 2021 JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1554485 DOI=10.3389/fpubh.2025.1554485 ISSN=2296-2565