AUTHOR=Sewify Ahmed , Lavaill Maxence , O’Rourke Dermot , Antico Maria , Pivonka Peter , Fontanarosa Davide , Martelli Saulo TITLE=Non-contact tracking of shoulder bones using ultrasound and stereophotogrammetry JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2025.1514568 DOI=10.3389/fbioe.2025.1514568 ISSN=2296-4185