AUTHOR=Yu Erdi , Han Pu , Fang Xiao TITLE=Exploring the mental health education policies of Chinese college students: based on policy text analysis and PMC-Index model JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1560582 DOI=10.3389/fpubh.2025.1560582 ISSN=2296-2565