1. Public Health England. COVID-19: track coronavirus cases 2020. https://www.gov.uk/government/publications/covid-19-track-coronavirus-cases. (Accessed 28 March 2020).
2. NHS England. N.H.S. to open two more new hospitals to fight coronavirus 2020. https://www.england.N.H.S.uk/2020/03/nhs-to-open-two-more-new-hospitals-to-fight-coronavirus/.
3. Baseline Characteristics and Outcomes of 1591 Patients Infected With SARS-CoV-2 Admitted to ICUs of the Lombardy Region, Italy;Grasselli;JAMA,2020
4. ICNARC report on COVID-19 in critical care (1st May);Intensive Care National Audit and Research Centre (ICNARC),2020
5. Intensive care management of coronavirus disease 2019 (COVID-19): challenges and recommendations;Phua;Lancet Respir Med 2020,2019