AUTHOR=Fan Fei , Wang Siqin TITLE=Editorial: Multilevel medical security systems and big data in healthcare: trends and developments JOURNAL=Frontiers in Public Health VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2024.1516102 DOI=10.3389/fpubh.2024.1516102 ISSN=2296-2565