This trial says UV light can be safe. Take it for what you will. https://www.medrxiv.org/content/10.1101/2021.03.05.21252997v1.full.pdf https://www.medrxiv.or

This trial says UV light can be safe. Take it for what you will. https://www.medrxiv.org/content/10.1101/2021.03.05.21252997v1.full.pdf https://www.medrxiv.org/content/10.1101/2021.03.05.21252997v...