1. Prevalence and impact of cardiovascular metabolic diseases on COVID-19 in china;Li;Clin Res Cardiol,2020
2. Public Health England. Guidance on social distancing for everyone in the UK. Available from: https://www.gov.uk/government/publications/covid-19-guidance-on-social-distancing-and-for-vulnerable-people/guidance-on-social-distancing-for-everyone-in-the-uk-and-protecting-older-people-and-vulnerable-adults.
3. Intensive Care National Audit and Research Centre. Covid-19 study case mix programme. 2020.
4. Office of National Statistics. 2011 census. 2011.
5. African ancestry, lung function and the effect of genetics;Menezes;Eur Respir J,2015