AUTHOR=Marletta Marcella TITLE=Regulation 2017/745 on medical devices, two major innovations: 1) the physiological action of devices consisting of natural materials such as vegetal matrices; 2) the chemical-physical-mechanical action of devices made of “substances”, which as such are artificial derivatives JOURNAL=Frontiers in Drug Safety and Regulation VOLUME=Volume 4 - 2024 YEAR=2024 URL=https://www.frontiersin.org/journals/drug-safety-and-regulation/articles/10.3389/fdsfr.2024.1389406 DOI=10.3389/fdsfr.2024.1389406 ISSN=2674-0869