https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6122858/
https://pphr.princeton.edu/2018/01/28/uv-light-a-new-tool-for-disease-prevention/
https://www.washingtontimes.com/news/2020/apr/26/pharmaceutical-firm-aytu-bioscience-testing-uv-lig/
Thanks for the good sources.