AUTHOR=Zheng Xia , Cao Quan , Zhou Xin TITLE=Research on optimization of emergency supplies customs clearance strategy from the perspective of public health security based on Chinese trade data JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1520705 DOI=10.3389/fpubh.2025.1520705 ISSN=2296-2565