AUTHOR=Wei Yuying , Gao Wenjuan , Wang Shuai , Li Qizhao , Xu Shuqian TITLE=Global, regional, and national burden of multiple myeloma from 1990 to 2021 and projections for 2040: a systematic analysis for the global burden of disease 2021 study JOURNAL=Frontiers in Epidemiology VOLUME=Volume 5 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/epidemiology/articles/10.3389/fepid.2025.1568688 DOI=10.3389/fepid.2025.1568688 ISSN=2674-1199