AUTHOR=Wang Jie , Gao Lina , Huang Qiaoyun , Jiang Weihua , Chen Linjun , Wang Shanshan TITLE=Impact of endometrial thickness and its combined effect with maternal age on singleton adverse neonatal outcomes in frozen–thawed embryo transfer cycles JOURNAL=Frontiers in Endocrinology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2024.1430321 DOI=10.3389/fendo.2024.1430321 ISSN=1664-2392