AUTHOR=Ji Wenhao , Pan Bin , Chen Xin , Lao Zhaobai , Yang Wanlei , Qian Yu TITLE=Mendelian randomization studies of risk and protective factors for osteoporosis: a systematic review and meta-analysis JOURNAL=Frontiers in Endocrinology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2024.1486188 DOI=10.3389/fendo.2024.1486188 ISSN=1664-2392