1. European Center for Disease Prevention and Control (ECDC) [Internet]. [consultado 27 Feb 2021]. Disponible en: https://www.ecdc.europa.eu/en/covid-19
2. The Italian health system and the COVID-19 challenge [Internet];Armocida;Lancet Public Health.,2020
3. The UK's public health response to covid-19 [Internet];Scally;The BMJ.,2020
4. COVID-19, Health system responses monitor [Internet];Eurohealth.,2020