1. World Health Organization. WHO Director-General’s opening remarks at the media briefing on COVID-19 - 11 March 2020. [cited 2022 Aug 3]. Available from: https://www.who.int/director-general/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19---11-march-2020.
2. Danish Health Authority. Instructions on the management of COVID-19 in the health care system. 2020 [cited 2022 Sep 28]. Available from: https://www.sst.dk/da/udgivelser/2022/retningslinjer-for-haandtering-af-covid-19.
3. World Health Organization. Coronavirus disease (COVID-19): How is it transmitted? 2021 [cited 2022 Aug 3]. Available from: https://www.who.int/news-room/questions-and-answers/item/coronavirus-disease-covid-19-how-is-it-transmitted#:~:text=The%20virus%20can%20spread%20from,%2C%20speak%2C%20sing%20or%20breathe.
4. Rechtman E, Curtin P, Navarro E, Nirenberg S, Horton MK. Vital signs assessed in initial clinical encounters predict COVID-19 mortality in an NYC hospital system. Sci Rep. 2020;10(1):21545.
5. Sørensen HT, Christensen T, Schlosser HK, Pedersen L, editors. Use of medical databases in clinical epidemiology. Second ed. Department of clinical epidemiology, Aarhus University Hospital, Denmark. 2009. [cited 2022 Aug 3]. Available from:https://kea.au.dk/fileadmin/KEA/filer/Link_documents/Use_of_medical_databases_in_clinical_epidemiology.pdf.