AUTHOR=Wang Junjie , Xiao Li , Zhang Yuxuan , Li Zhou TITLE=L-shaped correlation between serum alpha-1-acid glycoprotein concentration and urinary albumin creatinine ratio in females: a cross-sectional survey JOURNAL=Frontiers in Endocrinology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1438695 DOI=10.3389/fendo.2025.1438695 ISSN=1664-2392