AUTHOR=Liu Zijian , Liu Yi , Li Yang , Sun Yuyan , Song Xiaoxiang , Chen Lu , Zhou Dan TITLE=Bibliometric and visualisation analyses of gastric ulcer knowledge areas and emerging trends, 2004–2024 JOURNAL=Frontiers in Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1530835 DOI=10.3389/fmed.2025.1530835 ISSN=2296-858X