https://cdc.gov/coronavirus
https://covid19.nih.gov/
https://www.ncbi.nlm.nih.gov/sars-cov-2/
https://combatcovid.hhs.gov/
https://salud.nih.gov/covid-19/
https://clinicaltrials.gov/ct2/manage-recs/resources#DataElement
https://prsinfo.clinicaltrials.gov/results_definitions.html#DelayResultsType
https://www.fda.gov/news-events/public-health-focus/expanded-access
https://clinicaltrials.gov/ct2/about-site/history
https://clinicaltrials.gov/ct2/about-studies/learn#Participating
https://clinicaltrials.gov/ct2/results?cond=COVID-19&term=pre-exposure+prophylaxis&cntry=&state=&city=&dist=#main-content
https://clinicaltrials.gov/ct2/home
https://clinicaltrials.gov/ct2/search/index
https://clinicaltrials.gov/ct2/search/advanced
https://clinicaltrials.gov/ct2/search/browse?brwse=cond_cat
https://clinicaltrials.gov/ct2/search/map
https://clinicaltrials.gov/ct2/help/how-find/index
https://clinicaltrials.gov/ct2/help/how-use-search-results
https://clinicaltrials.gov/ct2/help/how-find/find-study-results
https://clinicaltrials.gov/ct2/help/how-read-study
https://clinicaltrials.gov/ct2/about-studies
https://clinicaltrials.gov/ct2/about-studies/learn
https://clinicaltrials.gov/ct2/about-studies/other-sites
https://clinicaltrials.gov/ct2/about-studies/glossary
https://clinicaltrials.gov/ct2/manage-recs
https://clinicaltrials.gov/ct2/manage-recs/submit-study
https://clinicaltrials.gov/ct2/manage-recs/background
https://clinicaltrials.gov/ct2/manage-recs/fdaaa
https://clinicaltrials.gov/ct2/manage-recs/how-apply
https://clinicaltrials.gov/ct2/manage-recs/how-register
https://clinicaltrials.gov/ct2/manage-recs/how-edit
https://clinicaltrials.gov/ct2/manage-recs/how-report
https://clinicaltrials.gov/ct2/manage-recs/faq
https://clinicaltrials.gov/ct2/manage-recs/resources
https://clinicaltrials.gov/ct2/manage-recs/present
https://clinicaltrials.gov/ct2/resources
https://clinicaltrials.gov/ct2/resources/pubs
https://clinicaltrials.gov/ct2/resources/alert
https://clinicaltrials.gov/ct2/resources/rss
https://clinicaltrials.gov/ct2/resources/trends
https://clinicaltrials.gov/ct2/resources/download
https://clinicaltrials.gov/ct2/about-site
https://clinicaltrials.gov/ct2/about-site/new
https://clinicaltrials.gov/ct2/about-site/background
https://clinicaltrials.gov/ct2/about-site/results
https://clinicaltrials.gov/ct2/about-site/modernization
https://clinicaltrials.gov/ct2/about-site/for-media
https://clinicaltrials.gov/ct2/about-site/link-to
https://clinicaltrials.gov/ct2/about-site/terms-conditions
https://clinicaltrials.gov/ct2/about-site/disclaimer
https://clinicaltrials.gov/ct2/manage-recs/register
https://clinicaltrials.gov/ct2/results?cond=COVID-19&term=pre-exposure+prophylaxis&cntry=&state=&city=&dist=#
https://clinicaltrials.gov/ct2/results/refine?term=pre-exposure+prophylaxis&cond=COVID-19
https://clinicaltrials.gov/ct2/results?cond=COVID-19&fund=0&fund=1
https://clinicaltrials.gov/ct2/who_table
https://www.covid19treatmentguidelines.nih.gov/
https://clinicaltrials.gov/ct2/covid_view
https://clinicaltrials.gov/ct2/results/details?term=pre-exposure+prophylaxis&cond=COVID-19
https://clinicaltrials.gov/ct2/results/browse?term=pre-exposure+prophylaxis&cond=COVID-19&brwse=cond_alpha_all
https://clinicaltrials.gov/ct2/results/map?term=pre-exposure+prophylaxis&cond=COVID-19&map=
https://clinicaltrials.gov/ct2/resources/download#DownloadAllData
https://clinicaltrials.gov/ct2/show/NCT04331834?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=1
https://clinicaltrials.gov/ct2/show/NCT04625725?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=2
https://clinicaltrials.gov/ct2/show/NCT04359537?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=3
https://clinicaltrials.gov/ct2/show/NCT04352946?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=4
https://clinicaltrials.gov/ct2/show/NCT04405271?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=5
https://clinicaltrials.gov/ct2/show/NCT04354870?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=6
https://clinicaltrials.gov/ct2/show/NCT04379245?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=7
https://clinicaltrials.gov/ct2/show/results/NCT04328467?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=8
https://clinicaltrials.gov/ct2/show/NCT04328467?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=8
https://clinicaltrials.gov/ct2/show/NCT04832945?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=9
https://clinicaltrials.gov/ct2/show/NCT04575545?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=10
https://clinicaltrials.gov/ct2/show/NCT04374942?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=11
https://clinicaltrials.gov/ct2/show/NCT04334928?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=12
https://clinicaltrials.gov/ct2/show/NCT04448119?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=13
https://clinicaltrials.gov/ct2/show/NCT04340544?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=14
https://clinicaltrials.gov/ct2/show/NCT04859517?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=15
https://clinicaltrials.gov/ct2/show/NCT04384458?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=16
https://clinicaltrials.gov/ct2/show/NCT04481633?term=pre-exposure+prophylaxis&cond=COVID-19&draw=3&rank=17
https://clinicaltrials.gov/ct2/results?cond=COVID-19&term=pre-exposure+prophylaxis&cntry=&state=&city=&dist=#wrapper
https://clinicaltrials.gov/ct2/help/for-patient
https://clinicaltrials.gov/ct2/help/for-researcher
https://clinicaltrials.gov/ct2/help/for-manager
https://clinicaltrials.gov/ct2/sitemap
https://support.nlm.nih.gov/knowledgebase/category/?id=CAT-01242&category=clinicaltrials.gov&hd_url=https%3A%2F%2Fclinicaltrials.gov%2Fct2%2Fresults%3Fterm%3Dpre-exposure%2Bprophylaxis%26cond%3DCOVID-19
https://www.nlm.nih.gov/copyright.html
https://www.nlm.nih.gov/privacy.html
https://clinicaltrials.gov/ct2/accessibility
https://www.nlm.nih.gov/plugins.html
https://www.nih.gov/icd/od/foia/index.htm
https://www.usa.gov/
https://www.nlm.nih.gov/
https://www.nih.gov/
https://www.hhs.gov/
