AUTHOR=Sun Ting , Zhang Yangyang , Xie Chunzhi , Teng Anyi , Lin Shi , Zhang Hui , Li Yan TITLE=Establishment of a predictive model for spontaneous preterm birth in primiparas with grade A1 gestational diabetes mellitus JOURNAL=Frontiers in Global Women's Health VOLUME=6 YEAR=2025 URL=https://www.frontiersin.org/journals/global-womens-health/articles/10.3389/fgwh.2025.1496085 DOI=10.3389/fgwh.2025.1496085 ISSN=2673-5059