AUTHOR=Toften Ståle , Kjellstadli Jonas T. , Kværness Jørn , Pedersen Line , Laugsand Lars E. , Thu Ole K. F. TITLE=Contactless and continuous monitoring of respiratory rate in a hospital ward: a clinical validation study JOURNAL=Frontiers in Physiology VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2024.1502413 DOI=10.3389/fphys.2024.1502413 ISSN=1664-042X