| covid19-dhs-study-4132020.pdf |
| inactivation_of_viruses_by_solar_radiation.pdf |
| columbia_news_far-uvc_article_4-21-20.pdf |
| indoor_vs_outdoor_study.pdf |
| bringing_the_outside_inside_to_make_the_inside_safe_again_r1.pdf |
| ciaa939_airborne_transmission_letter.pdf |
| covid-19_response_oped_rev4.pdf |