1. Rolling Updates on Coronavirus Disease (COVID-19)https://www.who.int/emergencies/diseases/novel-coronavirus-2019/interactive-timeline
2. Coronavirus Disease (COVID-19) Weekly Epidemiological Update and Weekly Operational Updatehttps://www.who.int/emergencies/diseases/novel-coronavirus-2019/situation-reports
3. Position Paper. Covid-19 Guidelines for the Operation of a Dental Practice during the Covid-19 Pandemichttps://www.sso.ch/fileadmin/upload_sso/0_Home/2_Newsrollbox/0_PDF/Covid-19-Positionspapier.pdf
4. Position Paper. COVID-19-Communication—Frequently Asked Questions to Smart Restarthttps://www.sso.ch/fileadmin/upload_sso/5_Newsletter/2020/Covid-19-Positionspapier3-7.pdf