AUTHOR=Wang Yinan , He Xiaoqin , Yang Chaogang , Ding Jinli TITLE=Global research on NK cells in miscarriage: a bibliometric study JOURNAL=Frontiers in Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1513213 DOI=10.3389/fmed.2025.1513213 ISSN=2296-858X