1. Excess deaths associated with covid-19 pandemic in 2020: age and sex disaggregated time series analysis in 29 high income countries;N. Islam;BMJ,2021
2. UK Government, https://www.england.nhs.uk/2020/12/landmark-moment-as-first-nhs-patient-receives-covid-19-vaccination/. 2020.
3. Joint Committee on Vaccination and Immunisation UK, https://www.gov.uk/government/groups/joint-committee-on-vaccination-and-immunisation. Accessed 10 Jan 2021.
4. Joint Committee on Vaccination and Immunisation UK, JCVI final statement on phase 2 of the COVID-19 vaccination programme: 13 April 2021. https://www.gov.uk/government/publications/priority-groups-for-phase-2-of-the-coronavirus-covid-19-vaccination-programme-advice-from-the-jcvi/jcvi-final-statement-on-phase-2-of-the-covid-19-vaccination-programme-13-april-2021, 2021.
5. UKHSA, Greenbook. Chapter 14a—COVID-19- SARS-CoV-2 https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1043861/Greenbook-chapter-14a-24Dec21.pdf. Accessed 10 Jan 2021.