AUTHOR=Yang Yanjiang , Chen Min , Yang Wenwen TITLE=Mediation effects of metabolites and sex hormones on the relationship between body mass index and breast cancer: Mendelian randomization analysis and mediation analysis JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2024 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1449956 DOI=10.3389/fonc.2024.1449956 ISSN=2234-943X