AUTHOR=Zhu Tuo-Dong , Yang Ming-Jin , Wu Hao TITLE=Exploration of policy feedback mechanism for healthcare improvement in China: a grounded theory model JOURNAL=Frontiers in Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1496836 DOI=10.3389/fmed.2025.1496836 ISSN=2296-858X