AUTHOR=Cao Fuchen , Li Yanli TITLE=Frontiers in medical physics: material classification and blood pressure measurement of wearable piezoelectric sensors JOURNAL=Frontiers in Physics VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2024.1529500 DOI=10.3389/fphy.2024.1529500 ISSN=2296-424X